“Hardness of prominent abrasive materials”的意思、由来-百科全书

Hardness of prominent abrasive materials

Table

Hardness of prominent abrasive materials

abrasive materials hardness

Mohs scale (Mohs hardness) Vickers scale (Vickers hardness) Knoop scale (Knoop hardness)

Natural abrasives

industrial diamond 10 10,000 8,000

corundum 9 2,200 1,600-2,100

emery 7-9 1,600 800-1,800

garnet 7-8 1,100-1,300 1,300-1,350

flint (chert and flint) 7 900-1,100 700-800

quartz 7 1,100 700-800

pumice 5-6 -- 430-560

talc 1 -- --

Synthetic abrasives

synthetic diamond 10 10,000 8,000-10,000

boron nitride (cubic) (boron nitride) 10 7,300-10,000 4,700-10,000

boron carbide 9-10 3,300-4,300 2,200-5,100

silicon carbide 9 2,800-3,300 2,000-3,700

alumina 9 2,200 2,000-2,600

See as table:

词条	Hardness of prominent abrasive materials
释义	Hardness of prominent abrasive materials Table Hardness of prominent abrasive materials abrasive materials hardness Mohs scale (Mohs hardness) Vickers scale (Vickers hardness) Knoop scale (Knoop hardness) Natural abrasives industrial diamond 10 10,000 8,000 corundum 9 2,200 1,600-2,100 emery 7-9 1,600 800-1,800 garnet 7-8 1,100-1,300 1,300-1,350 flint (chert and flint) 7 900-1,100 700-800 quartz 7 1,100 700-800 pumice 5-6 -- 430-560 talc 1 -- -- Synthetic abrasives synthetic diamond 10 10,000 8,000-10,000 boron nitride (cubic) (boron nitride) 10 7,300-10,000 4,700-10,000 boron carbide 9-10 3,300-4,300 2,200-5,100 silicon carbide 9 2,800-3,300 2,000-3,700 alumina 9 2,200 2,000-2,600 See as table:
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