The stress strain curve for a ceramic is a straight line as after a point ceramic suddenly reaches fracture point and breaks.

Ceramic structures have ionic bonds, covalent bonds. They show a mix of covalent and ionic bonds in some cases.

The correct answer is fracture point. Unlike metals or non metals, ceramics just break which is reach fracture point after a certain amount of strain.

Schottky defect occurs when oppositely charged ions leave crystal and creating a vacancy and hence is a vacancy defect while in Frenkel defect an atom moves from it’s original site to an interstitial position and hence is an interstitial defect.

The above statement is false. Cesium chloride has a simple cubic structure with a coordination number of 8.

The above statement is true. For a given flaw size for example 50 micrometers, intensity factor for zircon is 4.6 units and that of alumina is 3.7 units.

Cesium chloride has a coordination number of 8 while coordination number of sodium chloride and zinc blende are 6 and 4 respectively. Calcium chloride has a different coordination number for its anion and cation.

Diamond has properties resembling that of ceramics and hence can be used as a substitute ceramic. All or options are metals and hence y can never be used as a ceramic.

The range for tensile strength of fused silica (SiO2) which is a ceramic is 110 MPa. Therefore only 110 Mpa is correct answer.

The range for tensile strength of fused silica (SiO₂) which is a ceramic is 110 MPa. Therefore only 110 Mpa is correct answer.