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PRODUCTION METHOD OF POLYCRYSTALLINE BORON NITRIDE, POLYCRYSTALLINE BORON NITRIDE, CUTTING TOOL, WEAR-RESISTANT TOOL AND CUTTING TOOL
To produce a polycrystalline boron nitride having a fine texture and toughness.SOLUTION: The production method of a polycrystalline boron nitride contains: a first step of heating a powder of a high pressure phase boron nitride at 1300°C or over to obtain a heat treatment powder; and a second step of obtaining a polycrystalline boron nitride by sintering the heat-treated powder under a condition of 8-20 GPa and 1200-2300°C.SELECTED DRAWING: Figure 1
【課題】微細な組織を有し、かつ強靭となる窒化ホウ素多結晶体を製造する。【解決手段】窒化ホウ素多結晶体の製造方法は、高圧相窒化ホウ素の粉末を１３００℃以上で熱処理することにより熱処理粉末を得る第１工程と、前記熱処理粉末を、８〜２０ＧＰａかつ１２００〜２３００℃の条件下で焼結することにより窒化ホウ素多結晶体を得る第２工程とを含む。【選択図】図１
PRODUCTION METHOD OF POLYCRYSTALLINE BORON NITRIDE, POLYCRYSTALLINE BORON NITRIDE, CUTTING TOOL, WEAR-RESISTANT TOOL AND CUTTING TOOL
To produce a polycrystalline boron nitride having a fine texture and toughness.SOLUTION: The production method of a polycrystalline boron nitride contains: a first step of heating a powder of a high pressure phase boron nitride at 1300°C or over to obtain a heat treatment powder; and a second step of obtaining a polycrystalline boron nitride by sintering the heat-treated powder under a condition of 8-20 GPa and 1200-2300°C.SELECTED DRAWING: Figure 1
【課題】微細な組織を有し、かつ強靭となる窒化ホウ素多結晶体を製造する。【解決手段】窒化ホウ素多結晶体の製造方法は、高圧相窒化ホウ素の粉末を１３００℃以上で熱処理することにより熱処理粉末を得る第１工程と、前記熱処理粉末を、８〜２０ＧＰａかつ１２００〜２３００℃の条件下で焼結することにより窒化ホウ素多結晶体を得る第２工程とを含む。【選択図】図１
PRODUCTION METHOD OF POLYCRYSTALLINE BORON NITRIDE, POLYCRYSTALLINE BORON NITRIDE, CUTTING TOOL, WEAR-RESISTANT TOOL AND CUTTING TOOL
窒化ホウ素多結晶体の製造方法、窒化ホウ素多結晶体、切削工具、耐摩工具および研削工具
ISHIDA TAKESHI (author) / SUMIYA HITOSHI (author)
2019-06-06
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
B23B
Drehen
,
TURNING
/
B23C
Fräsen
,
MILLING
/
B24B
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
,
Maschinen, Einrichtungen oder Verfahren zum Schleifen oder Polieren
/
B24D
TOOLS FOR GRINDING, BUFFING OR SHARPENING
,
Werkzeuge zum Schleifen, Polieren oder Schärfen
/
B28D
Bearbeiten von Stein oder steinähnlichen Werkstoffen
,
WORKING STONE OR STONE-LIKE MATERIALS
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
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