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A platform for research: civil engineering, architecture and urbanism
CUBIC BORON NITRIDE SINTERED BODY AND COVERED CUBIC BORON NITRIDE SINTERED BODY
To provide a cubic boron nitride sintered body capable of extending a tool life, by having excellent wear resistance and defect resistance.SOLUTION: Provided is a cubic boron nitride sintered body containing cubic boron nitride and a binder phase, in which a content of cubic boron nitride is 40 vol.% or more and 70 vol.% or less, and a content of the binder phase is 30 vol.% or more and 60 vol.% or less, an average grain size of the cubic boron nitride is 0.1 μm or more and 3.0 μm or less, the binder phase contains TiN and/or TiCN, and TiB2, and substantially contains no AlN and/or no Al2O3, a maximum peak position (2θ) in the X-ray diffraction of the (101) plane of TiB2 in the binder phase is 44.2° or more, and when the x-ray diffraction intensity of a (111) plane of the cubic boron nitride is set to I1, and the x-ray diffraction intensity of a (101) plane of TiB2 in the binder phase is set to I2, I2/I1 is 0.10 or more and 0.55 or less.SELECTED DRAWING: None
【課題】本発明は、優れた耐摩耗性及び耐欠損性を有することによって、工具寿命を延長することができる立方晶窒化硼素焼結体を提供することを目的とする。【解決手段】立方晶窒化硼素と結合相とを含む立方晶窒化硼素焼結体であって、立方晶窒化硼素の含有量は、４０体積％以上７０体積％以下であり、結合相の含有量は、３０体積％以上６０体積％以下であり、立方晶窒化硼素の平均粒径は、０．１μｍ以上３．０μｍ以下であり、結合相は、ＴｉＮ及び／又はＴｉＣＮと、ＴｉＢ2とを含み、ＡｌＮ及び／又はＡｌ2Ｏ3を実質的に含まず、結合相中のＴｉＢ2の（１０１）面のＸ線回折における最大のピーク位置（２θ）が４４．２°以上であり、立方晶窒化硼素の（１１１）面のＸ線回折強度をＩ1、結合相中のＴｉＢ2の（１０１）面のＸ線回折強度をＩ2としたとき、Ｉ2／Ｉ1は、０．１０以上０．５５以下である、立方晶窒化硼素焼結体。【選択図】なし
CUBIC BORON NITRIDE SINTERED BODY AND COVERED CUBIC BORON NITRIDE SINTERED BODY
To provide a cubic boron nitride sintered body capable of extending a tool life, by having excellent wear resistance and defect resistance.SOLUTION: Provided is a cubic boron nitride sintered body containing cubic boron nitride and a binder phase, in which a content of cubic boron nitride is 40 vol.% or more and 70 vol.% or less, and a content of the binder phase is 30 vol.% or more and 60 vol.% or less, an average grain size of the cubic boron nitride is 0.1 μm or more and 3.0 μm or less, the binder phase contains TiN and/or TiCN, and TiB2, and substantially contains no AlN and/or no Al2O3, a maximum peak position (2θ) in the X-ray diffraction of the (101) plane of TiB2 in the binder phase is 44.2° or more, and when the x-ray diffraction intensity of a (111) plane of the cubic boron nitride is set to I1, and the x-ray diffraction intensity of a (101) plane of TiB2 in the binder phase is set to I2, I2/I1 is 0.10 or more and 0.55 or less.SELECTED DRAWING: None
【課題】本発明は、優れた耐摩耗性及び耐欠損性を有することによって、工具寿命を延長することができる立方晶窒化硼素焼結体を提供することを目的とする。【解決手段】立方晶窒化硼素と結合相とを含む立方晶窒化硼素焼結体であって、立方晶窒化硼素の含有量は、４０体積％以上７０体積％以下であり、結合相の含有量は、３０体積％以上６０体積％以下であり、立方晶窒化硼素の平均粒径は、０．１μｍ以上３．０μｍ以下であり、結合相は、ＴｉＮ及び／又はＴｉＣＮと、ＴｉＢ2とを含み、ＡｌＮ及び／又はＡｌ2Ｏ3を実質的に含まず、結合相中のＴｉＢ2の（１０１）面のＸ線回折における最大のピーク位置（２θ）が４４．２°以上であり、立方晶窒化硼素の（１１１）面のＸ線回折強度をＩ1、結合相中のＴｉＢ2の（１０１）面のＸ線回折強度をＩ2としたとき、Ｉ2／Ｉ1は、０．１０以上０．５５以下である、立方晶窒化硼素焼結体。【選択図】なし
CUBIC BORON NITRIDE SINTERED BODY AND COVERED CUBIC BORON NITRIDE SINTERED BODY
立方晶窒化硼素焼結体及び被覆立方晶窒化硼素焼結体
FUKUSHIMA YUICHIRO (author)
2023-03-08
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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