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Cubic boron nitride sintered body and coated cubic boron nitride sintered body

HIRANO YUSUKE / SHIRO KENTARO

A cBN sintered body has 40%-85% cBN by volume and 15% to 60% binder phase by volume. and inevitable impurities. The binder phase has an Al compound including Al and at least one element selected from N, O and B, and a Zr compound including Zr and at least one element selected from C, N, O and B. The Zr compound includes ZrO, or ZrO and ZrO2. In an X-ray diffraction, where a peak intensity of a (111) plane of the ZrO is I1, a peak intensity of a (101) plane of tetragonal ZrO2 is I2t and a peak intensity of a (111) plane of cubic ZrO2 is I2c, a ratio of the intensity of I1 to total intensities of I1, I2t and I2c is 0.6-1.0, and an average grain size of the Al compound is 80 nm-300 nm.

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Cubic boron nitride sintered body and coated cubic boron nitride sintered body

HIRANO YUSUKE / SHIRO KENTARO

A cBN sintered body has 40%-85% cBN by volume and 15% to 60% binder phase by volume. and inevitable impurities. The binder phase has an Al compound including Al and at least one element selected from N, O and B, and a Zr compound including Zr and at least one element selected from C, N, O and B. The Zr compound includes ZrO, or ZrO and ZrO2. In an X-ray diffraction, where a peak intensity of a (111) plane of the ZrO is I1, a peak intensity of a (101) plane of tetragonal ZrO2 is I2t and a peak intensity of a (111) plane of cubic ZrO2 is I2c, a ratio of the intensity of I1 to total intensities of I1, I2t and I2c is 0.6-1.0, and an average grain size of the Al compound is 80 nm-300 nm.

Cubic boron nitride sintered body and coated cubic boron nitride sintered body

HIRANO YUSUKE / SHIRO KENTARO

A cBN sintered body has 40%-85% cBN by volume and 15% to 60% binder phase by volume. and inevitable impurities. The binder phase has an Al compound including Al and at least one element selected from N, O and B, and a Zr compound including Zr and at least one element selected from C, N, O and B. The Zr compound includes ZrO, or ZrO and ZrO2. In an X-ray diffraction, where a peak intensity of a (111) plane of the ZrO is I1, a peak intensity of a (101) plane of tetragonal ZrO2 is I2t and a peak intensity of a (111) plane of cubic ZrO2 is I2c, a ratio of the intensity of I1 to total intensities of I1, I2t and I2c is 0.6-1.0, and an average grain size of the Al compound is 80 nm-300 nm.

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Titel:

Cubic boron nitride sintered body and coated cubic boron nitride sintered body

Beteiligte:

HIRANO YUSUKE (Autor:in) / SHIRO KENTARO (Autor:in)

Erscheinungsdatum:

25.09.2018

Medientyp:

Patent

Format:

Elektronische Ressource

Sprache:

Englisch

Klassifikation:

IPC: C04B Kalk , LIME / B23B Drehen , TURNING / C23C Beschichten metallischer Werkstoffe , COATING METALLIC MATERIAL

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