General Knowledge - General Science - Discussion
Discussion Forum : General Science - Elements and Metals (Q.No. 12)
12.
The hardest substance available on earth is
Discussion:
79 comments Page 1 of 8.
Sri said:
10 months ago
Yes, wurtzite boron nitride (w-BN) is indeed harder than diamond under certain conditions. When subjected to high pressures, wurtzite boron nitride can exceed the hardness of diamonds by about 18%. This increased hardness is due to a unique atomic bond rearrangement that occurs under stress.
However, it’s important to note that this extreme hardness is not permanent and is observed only under specific conditions.
Another material, lonsdaleite (hexagonal diamond) , has also been found to be harder than both diamond and wurtzite boron nitride.
However, it’s important to note that this extreme hardness is not permanent and is observed only under specific conditions.
Another material, lonsdaleite (hexagonal diamond) , has also been found to be harder than both diamond and wurtzite boron nitride.
(1)
Srikrishna N G said:
1 year ago
Only a diamond can cut the other diamond.
(1)
Akshat said:
7 years ago
Because of very strong sigma bond between each carbon atom.
(3)
Sanjay said:
7 years ago
Boron carbide is third after diamond and cubic boron carbide.
(3)
Suvankar Chakraborty said:
7 years ago
I think it would be boron carbide.
Shaan said:
7 years ago
Presently the hardest substance is wurtzite boron nitride.
Arsh garg said:
7 years ago
It is the hardest mineral.
It is also used to cut glass.
It is a non-metallic mineral.
It is also used to cut glass.
It is a non-metallic mineral.
Vaishnavi patil said:
8 years ago
Because of its tripod structure and strong carbon bonds.
(1)
Saran said:
8 years ago
Diamonds have strong covalent bond.
Adams said:
8 years ago
Because it is the hardest subtance on earth.
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