List of top Material Science & Ceramic Technology Questions

In comparison to lattice diffusion, the activation energy for diffusion along surfaces and grain boundaries is
In a binary system of A and B, if a liquid of 30% A is co-existing with a solid of 75% A, for an overall composition of 40% A, the fraction of liquid is given by
Nanostructured materials have crystallites ranging in the size of ____________
A continuous and aligned glass fibre reinforced composite consists of 40 vol% of glass fibres having a modulus of elasticity 69 GPa and 60 vol% of a polyester resin that when hardened displays a modulus of elasticity 3.4 GPa. What is the modulus of elasticity in longitudinal direction?
Which of the following substances is not used as coolant in nuclear reactors?
What is the major problem with fuel cell?
_________ is used to calculate theoretical weight deposited on the electrode during electrolysis.
Crown glass is a _________ glass.
Which phase must form on a biomaterial surface to promote bioactive bond?
_________ is not a neutral refractory.
Which one of the following is not a major reason to develop automotive fuel cell technology?
Danner process is used to prepare glass _________ continuously.
The limiting compositions of \( \text{Al}_2\text{O}_3 \) : \( \text{SiO}_2 \) in mullite solid solution series are _________
Addition of ________ to alumina increases its toughness.
In flat plate test, concave glazed side refers to _________ in glaze which will lead to _________.
________is the property of titania.
Zirconia is present in _________ crystal structure in the mineral baddeleyite.
_________ is not a glass former.
If resistivity is \( 1.7 \times 10^{-6} \) \( \Omega \)cm, area of cross-section is \( 19.6 \times 10^{-8} \) m\(^2\), length is 31.4 m, the resistance is found to be
In N-Type semiconductor, the Fermi Level
Which of the following is not made of calcium carbonate?
The power loss (\( P \)) in a dielectric is given by _________ where \( V \) is voltage, \( I \) is current, \( \delta \) is loss tangent
Which of the following is not an allotropic form of iron?
The fracture toughness values of Ceramic Matrix Composites lie between
The mean grain diameter corresponding to ASTM number of 0.5 is