Question
Download Solution PDFThe hardest tool material available next to diamond is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe hardness of some common materials in the Knoop scale is shown in the table.
|
Material |
Hardness (N/mm2) |
|
Hardness Steel |
7,000 – 13,000 |
|
Tungsten Carbide |
18,000 – 24,000 |
|
Aluminium Oxide |
20,000 – 30,000 |
|
Titanium Carbide |
18,000 – 32,000 |
|
Silicon Carbide |
21,000 – 30,000 |
|
Boron Carbide |
28,000 |
|
Cubic Boron Nitride (CBN) |
35,000 – 47,500 |
|
Diamond |
70,000 – 80,000 |
Thus from the table hardness of the material next to Diamond is Cubic Boron Nitride (CBN).
Last updated on May 28, 2025
-> ISRO Technician Fitter recruitment notification 2025 has been released
->Candidates can fill ISRO Fitter application form from June 2 to 16.
->A total of 20 vacancies are announced for ISRO recruitment 2025 for Fitter.
->Candidates must have passed SSLC/ SSC/ Matriculation and should have NTC/ITI/NAC in ->Fitter Trade Certificate from an NCVT recognized by the government to satisfy the ISRO Technician B Fitter Eligibility Criteria.