JPH0321212B2 - - Google Patents

Info

Publication number

JPH0321212B2

JPH0321212B2 JP58069214A JP6921483A JPH0321212B2 JP H0321212 B2 JPH0321212 B2 JP H0321212B2 JP 58069214 A JP58069214 A JP 58069214A JP 6921483 A JP6921483 A JP 6921483A JP H0321212 B2 JPH0321212 B2 JP H0321212B2

Authority

JP

Japan

Prior art keywords

hbn

cbn

catalyst

excess

mixed

Prior art date

1983-04-21

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Links

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• 238000000034 method Methods 0.000 claims description 7
• 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 3
• 150000001342 alkaline earth metals Chemical group 0.000 claims description 3
• 230000002194 synthesizing effect Effects 0.000 claims description 3
• 239000012298 atmosphere Substances 0.000 claims description 2
• 238000010438 heat treatment Methods 0.000 claims description 2
• 229910052582 BN Inorganic materials 0.000 claims 1
• PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims 1
• 239000003054 catalyst Substances 0.000 description 18
• 238000006243 chemical reaction Methods 0.000 description 6
• 239000002245 particle Substances 0.000 description 6
• 238000002156 mixing Methods 0.000 description 5
• 239000000047 product Substances 0.000 description 5
• 230000015572 biosynthetic process Effects 0.000 description 4
• 239000000203 mixture Substances 0.000 description 4
• 239000000843 powder Substances 0.000 description 4
• 239000002994 raw material Substances 0.000 description 4
• 238000003786 synthesis reaction Methods 0.000 description 4
• 229910052791 calcium Inorganic materials 0.000 description 3
• 230000000052 comparative effect Effects 0.000 description 3
• 150000001875 compounds Chemical class 0.000 description 3
• 239000013078 crystal Substances 0.000 description 3
• 230000000694 effects Effects 0.000 description 3
• 238000002441 X-ray diffraction Methods 0.000 description 2
• 238000004458 analytical method Methods 0.000 description 2
• 229910052788 barium Inorganic materials 0.000 description 2
• 230000007547 defect Effects 0.000 description 2
• 238000000227 grinding Methods 0.000 description 2
• 238000002360 preparation method Methods 0.000 description 2
• 239000000126 substance Substances 0.000 description 2
• 229910052783 alkali metal Inorganic materials 0.000 description 1
• 150000001340 alkali metals Chemical class 0.000 description 1
• 229910052790 beryllium Inorganic materials 0.000 description 1
• 238000001354 calcination Methods 0.000 description 1
• 239000013043 chemical agent Substances 0.000 description 1
• 239000007795 chemical reaction product Substances 0.000 description 1
• 239000003795 chemical substances by application Substances 0.000 description 1
• 238000002425 crystallisation Methods 0.000 description 1
• 230000008025 crystallization Effects 0.000 description 1
• 238000005520 cutting process Methods 0.000 description 1
• -1 i.e. Inorganic materials 0.000 description 1
• 230000001788 irregular Effects 0.000 description 1
• 229910052749 magnesium Inorganic materials 0.000 description 1
• 238000004519 manufacturing process Methods 0.000 description 1
• 238000002844 melting Methods 0.000 description 1
• 230000008018 melting Effects 0.000 description 1
• 150000004767 nitrides Chemical class 0.000 description 1
• 239000012299 nitrogen atmosphere Substances 0.000 description 1
• 238000007670 refining Methods 0.000 description 1
• 239000007787 solid Substances 0.000 description 1
• 229910052712 strontium Inorganic materials 0.000 description 1