What are the properties of powder metallurgy ?

What are the properties of powder metallurgy ?
by

1 Answer

Answer :

The advantages of powder metallurgy are given below: All the products which cannot be made in any other way , can be made in this way. Products can also be made with a mixture of metallic and non-metallic powders. Complex shaped products can be made. In this method the metallic material and the ratio can be kept accurate. No machining of products made in this method is required. The advantage of this method is more in case of mass production. Skilled workers are not needed. The product produced is very smooth and beautiful.
by

Related questions

What is powder metallurgy ?

Description : What is powder metallurgy ?

Last Answer : The branch of metallurgy which deals with the preparation of metal powders and the use of specific heat and pressure from that powder to make human service utensils or desirable working materials and their properties is called powder metallurgy .

The process of heating the cold pressed metallic powder is called __________ in powder metallurgy. (A) Precipitation (B) Fusion (C) Sintering (D) Agglomeration

Description : The process of heating the cold pressed metallic powder is called __________ in powder metallurgy. (A) Precipitation (B) Fusion (C) Sintering (D) Agglomeration

Last Answer : (C) Sintering

Tin coating on metals is not done by (A) Spraying (B) Powder metallurgy (C) Hot dipping (D) Electro-deposition

Description : Tin coating on metals is not done by (A) Spraying (B) Powder metallurgy (C) Hot dipping (D) Electro-deposition

Last Answer : (B) Powder metallurgy

Which of the following can be manufactured using powder metallurgy techniques? (A) Brake linings (B) Bearings (C) Carbide tool tips (D) All 'a', 'b' and 'c'

Description : Which of the following can be manufactured using powder metallurgy techniques? (A) Brake linings (B) Bearings (C) Carbide tool tips (D) All 'a', 'b' and 'c'

Last Answer : (D) All 'a', 'b' and 'c'

Powder metallurgy is used to produce (A) High precision components with complex cavities and sharp features (B) Components of large size (C) Porosity free components (D) Components of such alloys whose constituents do not form alloys readily

Description : Powder metallurgy is used to produce (A) High precision components with complex cavities and sharp features (B) Components of large size (C) Porosity free components (D) Components of such alloys whose constituents do not form alloys readily

Last Answer : (C) Porosity free components

For preparation of porous bearings by powder metallurgy, preferred particle shape is (A) Spherical (B) Nodular (C) Irregular (D) No preferred shape

Description : For preparation of porous bearings by powder metallurgy, preferred particle shape is (A) Spherical (B) Nodular (C) Irregular (D) No preferred shape

Last Answer : (A) Spherical

Powder metallurgy process does not make metal powder by (A) Atomisation (B) Grinding/milling (C) Hammering (D) Electrolytic deposition

Description : Powder metallurgy process does not make metal powder by (A) Atomisation (B) Grinding/milling (C) Hammering (D) Electrolytic deposition

Last Answer : Option C

Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of (A) 90% tungsten carbide and 10% cobalt (B) 70% aluminium oxide & 30% silica (C) 30% nickel, 15% chromium & 55% tungsten (D) 65% tungsten & 35% zirconium

Description : Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of (A) 90% tungsten carbide and 10% cobalt (B) 70% aluminium oxide & 30% silica (C) 30% nickel, 15% chromium & 55% tungsten (D) 65% tungsten & 35% zirconium

Last Answer : Option A

Powder metallurgy technique is used in the production of __________ tools. (A) Tungsten carbide (B) High carbon steel (C) High speed steel (D) Drilling

Description : Powder metallurgy technique is used in the production of __________ tools. (A) Tungsten carbide (B) High carbon steel (C) High speed steel (D) Drilling

Last Answer : Option A

Although thermodynamically feasible, in practice, Magnesium metal is not used for the reduction of Alumina in the metallurgy of aluminium.Why?

Description : Although thermodynamically feasible, in practice, Magnesium metal is not used for the reduction of Alumina in the metallurgy of aluminium.Why?

Last Answer : Ans. : Below the temperature(1623 K) correspoinding to the point of intersection of Al 2O3 and MgO curves in Ellingham diagram, Magnesium can reduce Alumina because the ΔfG o value of Al2O3 at ... to Al. But Magnesium is much costier metal than Aluminium and hence the process will be uneconomical.

Bleaching action of bleaching powder is due to its __________ properties. (A) Reducing (B) Oxidising (C) Disinfecting (D) None of these

Description : Bleaching action of bleaching powder is due to its __________ properties. (A) Reducing (B) Oxidising (C) Disinfecting (D) None of these

Last Answer : (B) Oxidising

What should be the properties of powder to be filled in hard gelatine capsule?

Description : What should be the properties of powder to be filled in hard gelatine capsule?

Last Answer : Properties of powder: Flow property of powders depends upon followings: 1. Particle size.: Uniform 2. Particle shape.: Spherical 3. Density: same density 4. Surface texture: smooth 5. Angle of ... is 250. The powder does not flow smoothly, if angle of repose is more than 500. 

State general steps involved in metallurgy of a metal. -Science

Description : State general steps involved in metallurgy of a metal. -Science

Last Answer : The general steps of metallurgy are : Concentration of ore. Reduction of the metal compound. Refining of metal.

Explain the term ‘metallurgy’. -Science

Description : Explain the term ‘metallurgy’. -Science

Last Answer : Metallurgy is the science of extracting metals from their ores and purifying them for various uses.

evidence seems to suggest that the art of metallurgy began in _____. -General Knowledge

Description : evidence seems to suggest that the art of metallurgy began in _____. -General Knowledge

Last Answer : Evidence seems to suggest that the art of metallurgy began in Africa.

what are Metallurgy Service?

Description : what are Metallurgy Service?

Last Answer : Metals and alloys have been used extensively in personal appliances and industrial instruments due to their excellent mechanical property, as well as electrical and thermal conductivity. Among different types of ... For example, carbon steel which is also known as mild steel is useful for making

How many of the given metals can be obtained by carbon reduction in their extractive metallurgy

Description : How many of the given metals can be obtained by carbon reduction in their extractive metallurgy

Last Answer : How many of the given metals can be obtained by carbon reduction in their extractive metallurgy

Which of the following process is used in the extractive metallurgy of magnesium ?

Description : Which of the following process is used in the extractive metallurgy of magnesium ?

Last Answer : Which of the following process is used in the extractive metallurgy of magnesium ? A. ... C. Aqqueos solution electrolysis D. Therminte reducation

Which of the following statement is incorrect about the extractive metallurgy of coper?

Description : Which of the following statement is incorrect about the extractive metallurgy of coper?

Last Answer : Which of the following statement is incorrect about the extractive metallurgy of coper? A. Matte ... Bessomer converter is called as blister copper.

Which of the following process is used in the extractive metallurgy of magnesium ?

Description : Which of the following process is used in the extractive metallurgy of magnesium ?

Last Answer : Which of the following process is used in the extractive metallurgy of magnesium ? A. ... C. Aqueous solution electrolysis D. Thermite reduction

In the metallurgy of iron, when limestone is added to the blast furnace,the calcium ions end up in

Description : In the metallurgy of iron, when limestone is added to the blast furnace,the calcium ions end up in

Last Answer : In the metallurgy of iron, when limestone is added to the blast furnace,the calcium ions end up ... B. Gangue C. Metallic calcium D. Calcium Carbonate

Which one of the following reactions occur during smelting in the reduction zone at lower temperature(in iron metallurgy)?

Description : Which one of the following reactions occur during smelting in the reduction zone at lower temperature(in iron metallurgy)?

Last Answer : Which one of the following reactions occur during smelting in the reduction zone at lower temperature(in iron ... CO` D. `CO_(2)+C rarr 2CO`

ELECTROCHEMICAL PRINCIPLE OF METALLURGY

Description : ELECTROCHEMICAL PRINCIPLE OF METALLURGY

Last Answer : ELECTROCHEMICAL PRINCIPLE OF METALLURGY A. In simple electrolysis, the `M^(n^(+))` ions are ... +ve and the reaction would not be feasible.

In the metallurgy of aluminium,

Description : In the metallurgy of aluminium,

Last Answer : In the metallurgy of aluminium, A. graphite anode is oxidised to carbon monoxide and carbon ... in the overall reaction involved in the process

In the metallurgy of Fe, when `CaCo_(3)` is added to blast furnace, calcicum ion appears as

Description : In the metallurgy of Fe, when `CaCo_(3)` is added to blast furnace, calcicum ion appears as

Last Answer : In the metallurgy of Fe, when `CaCo_(3)` is added to blast furnace, calcicum ion appears as A. CaO B. metallic C. ggangue D. slag

In extractive metallurgy of lead, the reduction of the roasted ore to the molten metal by heating with coke is called

Description : In extractive metallurgy of lead, the reduction of the roasted ore to the molten metal by heating with coke is called

Last Answer : In extractive metallurgy of lead, the reduction of the roasted ore to the molten metal by heating with ... B. roasting C. calcination D. None of these

Hydro metallurgy is used in the extraction of

Description : Hydro metallurgy is used in the extraction of

Last Answer : Hydro metallurgy is used in the extraction of A. Cu B. Au C. Ag D. All

What os mechanical metallurgy?

Description : What os mechanical metallurgy?

Last Answer : Need answer

Which process is generally used in extracting magnesium in metallurgy?

Description : Which process is generally used in extracting magnesium in metallurgy?

Last Answer : Fused salt electrolysis is generally used in extracting magnesium in Metallurgy. In the extraction of metal, magnesium is usually extracted by the electrolysis of fused anhydrous MgCl2 because of its reactive nature. Another process uses silicon to reduce magnesium oxide.

The names of the scientists, Newlands, Mendeleev and Meyer are associated with the development of (a) Atomic structure (b) Metallurgy (c) Periodic table of elements (d) Discovery of elements

Description : The names of the scientists, Newlands, Mendeleev and Meyer are associated with the development of (a) Atomic structure (b) Metallurgy (c) Periodic table of elements (d) Discovery of elements

Last Answer : Ans:(c)

Write a note on contributions of Indians to metallurgy.

Description : Write a note on contributions of Indians to metallurgy.

Last Answer : a) Romans used armour and cutlery made from Indian iron. b) Indian metallurgist Nagarjuna wrote the book Rasaratnakara' in 9th century BC which explained the preparation of various metallic ... near Qutab Minar constructed by Vikramadithya about 1600 years ago has withstood the action of weather.

Explain the following terms with reference to metallurgy.

Description : Explain the following terms with reference to metallurgy.

Last Answer : a) Gangue The unwanted impurities present in the ore are called gangue. b) Concentration of ore The process of removing the gangue particles to increase the percentage of desired component of the ore ... flux. f) Slag The substance formed by the combination of impurities like sand is called slag.

Define metallurgy.

Description : Define metallurgy.

Last Answer : The technology of extraction of metals from their ores and refining them to required form is called metallurgy.

What is Metallurgy ?

Description : What is Metallurgy ?

Last Answer : Metallurgy: The process used for extraction of metals in their pure from their ores is called Metallurgy.

Identify the correct statement with reference to the extractive metallurgy of aluminium. (A) The electrolyte consists of molten Na3AlF6 with approximately 1 to 8% Al2O3 (B) Approximately 80% of the aluminium deposited on the cathode comes from cryolite (C) Sodium is deposited along with aluminium, but is immediately vaporised (D) Anode effect sets in when the cryolite concentration goes below 40%.

Description : Identify the correct statement with reference to the extractive metallurgy of aluminium. (A) The electrolyte consists of molten Na3AlF6 with approximately 1 to 8% Al2O3 (B) Approximately 80% of ... is immediately vaporised (D) Anode effect sets in when the cryolite concentration goes below 40%.

Last Answer : (A) The electrolyte consists of molten Na3AlF6 with approximately 1 to 8% Al2O3

Froth Flotation process is used for the metallurgy of

Description : Froth Flotation process is used for the metallurgy of

Last Answer : Sulphide ore

Honorable PM of India declared 2012 to be the National ______ Year (a) Phyics (b) Mathematical (c) Nano Science (d) Metallurgy

Description : Honorable PM of India declared 2012 to be the National ______ Year (a) Phyics (b) Mathematical (c) Nano Science (d) Metallurgy

Last Answer : (b) Mathematical

Define the term metallurgy. Name the process of extraction of Aluminium.

Description : Define the term metallurgy. Name the process of extraction of Aluminium. 

Last Answer : Metallurgy:-The process of extraction of metal from its ore economically & profitably is called as metallurgy. The process used for extraction of Aluminium metal is Bayer’s process, Electrolytic reduction of alumina, Electrolytic refining. 

12.Few iron filings and a pinch of sulphur powder are taken in a china dish and mixed properly. Justify the change, giving two points as physical/chemical change. -Chemistry

Description : 12.Few iron filings and a pinch of sulphur powder are taken in a china dish and mixed properly. Justify the change, giving two points as physical/chemical change. -Chemistry

Last Answer : It is a physical change as if we will bring the magnet near it all the iron fillings will attract towards it. Hence it shows the properties of it constituents are present so, no new substance is formed. Therefore, it is a physical change .

Write balanced chemical equations for the following reactions: (a) Dilute sulphuric acid reacts with aluminium powder. (b) Dilute hydrochloric acid reacts with sodium carbonate. (c) Carbon dioxide is passed through lime water. -Chemistry

Description : Write balanced chemical equations for the following reactions: (a) Dilute sulphuric acid reacts with aluminium powder. (b) Dilute hydrochloric acid reacts with sodium carbonate. (c) Carbon dioxide is passed through lime water. -Chemistry

Last Answer : i hope it helped you

You are provided with magnesium ribbon and sulpher powder. Explain with the help of an activity that metal oxides are basic and non-metal oxide are acidic in nature. -Chemistry

Description : You are provided with magnesium ribbon and sulpher powder. Explain with the help of an activity that metal oxides are basic and non-metal oxide are acidic in nature. -Chemistry

Last Answer : Aim: To test the nature of oxides formed by metals and non-metals. Materials Required: Sulphur powder, Mg ribbon, water, blue litmus paper, red litmus paper. Procedure: 1.Take magnesium ribbon ... the metallic oxides are basic in nature whereas most of the non-metallic oxides are acidic in nature.

What is the chemical name of bleaching powder ?

Description : What is the chemical name of bleaching powder ?

Last Answer : The chemical name of bleaching powder is calcium hypochlorite. Other names are: Calcium Oxychloride , Hypochlorous Acid , Calcium Salt etc.

By what means is ore turned into powder ?

Description : By what means is ore turned into powder ?

Last Answer : Ball crusher is used to make powder.

What is Bleaching Powder ?

Description : What is Bleaching Powder ?

Last Answer : It is a powder like wheel powder. Sesame stains on the fabric. Used to clean various things.

What is the technique of removing blemishes with bleaching powder ?

Description : What is the technique of removing blemishes with bleaching powder ?

Last Answer : First, cover your face and nose with a handkerchief. Take 1.5 mugs of water in a bucket for a cloth. Now stir 2.5 teaspoons of bleaching powder with water with a stick. Then soak the ... clothes well. Then rinse again with detergent powder and let dry. Finally, wash your hands thoroughly with soap.

What is baking powder ?

Description : What is baking powder ?

Last Answer : Baking powder is a dry mixture of alkali sodium bicarbonate and tartaric acid.

What is the function of baking powder ?

Description : What is the function of baking powder ?

Last Answer : : Baking powder is used to inflate cakes and bread. It helps in inflating.

(1) Calcium silicate and calcium alurninate Explanation: Portland cement is the most common type of cement in general use around the world because it is a basic ingredient of concrete, mortar, stucco and most non-specialty grout. It usually originates from limestone. It is a fine powder produced by grinding Portland cement. clinker (more than 90%), a limited amount of calcium sulfate (which controls the set time) and up to 5% minor constituents.

Description : (1) Calcium silicate and calcium alurninate Explanation: Portland cement is the most common type of cement in general use around the world because it is a basic ingredient of concrete, mortar, stucco ... limited amount of calcium sulfate (which controls the set time) and up to 5% minor constituents.

Last Answer : Milk is a colloidal system in which: (1) Water is dispersed in fat (2) Fat is dispersed in water (3) Fat and water are dispersed in each other (4) Fat is dissolved

(1) aluminium powder and ammonium nitrate Explanation: Ammonal is an explosive made up of ammonium nitrate and aluminium powder. The ammonium nitrate functions as an oxidizer and the aluminium as fuel. The use of the relatively cheap ammonium nitrate and aluminium makes it a replacement for pure TNT. The mixture is affected by humidity because ammonium nitrate is highly hygroscopic. Ammonal is not easily detonated, requiring a fairly substantial shock, though it is still more sensitive than trinitrotoluene and composition C4.

Description : (1) aluminium powder and ammonium nitrate Explanation: Ammonal is an explosive made up of ammonium nitrate and aluminium powder. The ammonium nitrate functions as an oxidizer and the aluminium ... a fairly substantial shock, though it is still more sensitive than trinitrotoluene and composition C4.

Last Answer : Gelatin is mostly used in making icecreams in order to - (1) prevent making a colloid (2) stabilise the colloid and prevent crystallisation (3) stabilise mixture (4) enrich the aroma