Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CUBIC BORON NITRIDE SINTERED BODY AND COATED CUBIC BORON NITRIDE SINTERED BODY
This is to provide a cubic boron nitride sintered body and a coated cubic boron nitride sintered body in which tool life thereof is elongated by improving wear resistance. Provided is a cBN sintered body comprising cBN with 40% by volume or more and 85% by volume or less, a binder phase with 15% by volume or more and 60% by volume or less and inevitable impurities, wherein the binder phase comprises an Al compound comprising an Al element and at least one element selected from N, O and B, and a Zr compound comprising a Zr element and at least one element selected from C, N, O and B, the Zr compound comprises ZrO, or ZrO and ZrO 2 , and in an X-ray diffraction, when an peak intensity of a (111) plane of the ZrO was represented as I 1 , an peak intensity of a (101) plane of tetragonal ZrO 2 was represented as I 2t and an peak intensity of a (111) plane of cubic ZrO 2 was represented as I 2c , then a ratio of the intensity of I 1 based on the total intensities of I 1 , I 2t and I 2c is 0.6 or more and 1.0 or less, and an average grain size of the Al compound is 80 nm or more and 300 nm or less.
CUBIC BORON NITRIDE SINTERED BODY AND COATED CUBIC BORON NITRIDE SINTERED BODY
This is to provide a cubic boron nitride sintered body and a coated cubic boron nitride sintered body in which tool life thereof is elongated by improving wear resistance. Provided is a cBN sintered body comprising cBN with 40% by volume or more and 85% by volume or less, a binder phase with 15% by volume or more and 60% by volume or less and inevitable impurities, wherein the binder phase comprises an Al compound comprising an Al element and at least one element selected from N, O and B, and a Zr compound comprising a Zr element and at least one element selected from C, N, O and B, the Zr compound comprises ZrO, or ZrO and ZrO 2 , and in an X-ray diffraction, when an peak intensity of a (111) plane of the ZrO was represented as I 1 , an peak intensity of a (101) plane of tetragonal ZrO 2 was represented as I 2t and an peak intensity of a (111) plane of cubic ZrO 2 was represented as I 2c , then a ratio of the intensity of I 1 based on the total intensities of I 1 , I 2t and I 2c is 0.6 or more and 1.0 or less, and an average grain size of the Al compound is 80 nm or more and 300 nm or less.
CUBIC BORON NITRIDE SINTERED BODY AND COATED CUBIC BORON NITRIDE SINTERED BODY
KUBISCHER GESINTERTER BORNITRIDKÖRPER UND KUBISCHER GESINTERTER BORNITRIDKÖRPER MIT EINER BESCHICHTUNG
CORPS FRITTÉ EN NITRURE DE BORE CUBIQUE ET CORPS FRITTÉ EN NITRURE DE BORE CUBIQUE REVÊTU
HIRANO YUSUKE (Autor:in) / SHIRO KENTARO (Autor:in)
06.11.2019
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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