Composites

Question 1

Is a multiphased material that is artificially made. The constituents must be chemically dissimilar and must be separated by an interface.

Answer 1

Composites

Question 2

How many phases does a composite have? Enumerate

Answer 2

There are two: Matrix and Dispersed Phase

Question 3

Two types of Composites in Construction

Answer 3

1. Composite type based on Matrix Constituents
2. Composite type based on Matrix Constituent Forms

Question 4

Consists of various short and continuous fibers which are held together by an organic polymer matrix

Answer 4

Polymer Matrix Composites

Question 5

Its main function is to transfer loads between fibers through the matrix

Answer 5

Polymer Matrix Composites

Question 6

It is usually made of aluminum. It is a material in which silicone carbide, continuous carbon or ceramic fibers are embedded in a metallic matrix material

Answer 6

Metal Matrix Composite

Question 7

Materials consisting of a ceramic or carbon fiber surrounded by a ceramic or carbon fiber surrounded by a ceramic matrix

Answer 7

Ceramic Matrix Composite

Question 8

Agent that redistribute the loads

Answer 8

Matrix

Question 9

Composed of hard particle constituents in a softer matrix in an arbitrary order

Answer 9

Particulate Reinforced Composite

Question 10

Produced by blending of the matrix and thin flakes

Answer 10

Flakes Composites

Question 11

Composed of strong and stiff fibers which are held together by a matrix

Answer 11

Fiber reinforced Composite

Question 12

Made from bonded elementary layers which are composites themselves

Answer 12

Laminated Composites

Question 13

Applications of Composites

Answer 13

Aerospace, spacecraft, Manufacturing yachts, boats, cruise ships

Question 14

Classification of composites by their Uses

Answer 14

Geotextiles, Filters, Sorbents, Structural Composites, Non-structural Composites, molded products, Packaging

Question 15

Permeable fabric which used in association with soil. It has the ability to separate, filter, reinforce, protect or drain.

Answer 15

Geotextiles

Question 16

Medium and High density mats which can be used for filtering.

Answer 16

Air filters

Question 17

Used to remove heavy metals and pesticides and oil. They removes dyes, traces of chemicals in solvents and in the purification of solvents

Answer 17

Sorbents

Question 18

Defined as one that is required to carry load in use.

Answer 18

Structural Composite

Question 19

Not intended to carry a load in use. Can be made from thermoplastics, textile and wood particles.

Answer 19

Non-structural Composites

Question 20

These are wood flat sheets that are cut into pieces and glued to make shaped products

Answer 20

Molded Products

Question 21

Made from jute that is used for sacking for products

Answer 21

Gunny Bags

Question 22

Advantages of composites in Agricultural Machinery

Answer 22

1. Lightness and Weight
2. Corrosion Resistance
3. Flexibility in Design
4. Durability

Question 23

Limitations

Answer 23

1. Cost in Production
2. Limited infrastructure
3. Lack of standards
4. Tradition and conservation
5. Reliability and Maintainability