Explain why silicon carbide–reinforced alumina is stronger and tougher than pure alumina.

Video transcript

Hello everyone. Today we are being asked the following question which are the fallen correctly explains why boron carbide reinforced alumina is stronger than pure alumina. Well we have to go to the following answer choices and see which ones are correct. So answer choice one says Boron carbide whiskers can redirect cracks, preventing them from Clini Preventing them to develop cleanly in one direction. This is actually correct. In a part of our answer, boron carbide whiskers can redirect cracks and thus prevents them from developing cleanly in one direction so we can get rid of answer choices. B see and E. Moving on to the second answer choice. Most of the chemical bonds are aligned opposite the tiny fiber shaped boron carbide particles or whiskers hence giving fibers great strength along that direction. Well most of the chemical bonds are actually aligned along the tiny fiber shaped boron carbide particles whiskers which in turn gives them great strength along that direction. So Answing Choice two is incorrect. This means that we can get ready to answer choice. D. And lastly two sides of a crack can be broken further by brawling carbide whiskers by forming bridges, preventing further development of cracks. Well actually two sides of a crack can be held together so two sides of a crack can be held together by boron carbide whiskers by forming bridges preventing further development of cracks and so that just leaves answer choice A. As the only correct answer choice. And with that we've answered the question overall. I hope this helped and until next time