首页 > Term: Knoop hardness
Knoop hardness
Microhardness determined from the resistance of metal to indentation by a pyramidal diamond indenter, having edge angles of 172 degrees 30' and 130 degrees , and making a rhombohedral impression with one long and one short diagonal. Compare: Mohs scale
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
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创建者
- ed.young
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(Milwaukee, United States)