Q2B / Complete the following: ( 15 marks) 1-Advanced materials are ............ , .......... , ............. ,...

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Mechanical Engineering

Q2B / Complete the following: ( 15 marks)
1-Advanced materials are ............ , .......... ,............. , and ...............
2-As the atomic number is increased, the melting point is..................
3 -Covalent bond is very strong because..................
4- The relationship between vacancies number and tem.is.................
5- Nano- fibers are used for ............., ..............,and ...............
6-The difference between soft and permanent magnets is......................
7- Cast iron has lower toughness than steel because..................
8-Cobalt has density of ......, melting temp. of ...... andcan be classified to........
9- Cermets mean ..................
10-Exrinisic has energy gap of .................ev

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3.8 Ratings (496 Votes)

1 Advanced materials arelight metalstitanium andaluminiumcompositesofcarbon fiber and Kevlar steelstrip steels and dual phase steels 2 As the atomic number of elementsincreases the melting point increases becausethere are more electrons around the nucleus which creates astronger negativelycharged force3Covalent bonds are very stronger because theyare formed by the See Answer

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