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A platform for research: civil engineering, architecture and urbanism
CUBIC CRYSTAL BORON NITRIDE SINTERED BODY, AND TOOL HAVING CUBIC CRYSTAL BORON NITRIDE SINTERED BODY
To improve abrasion resistance and defect resistance of a cubic crystal boron nitride sintered body.SOLUTION: A cubic crystal boron nitride sintered body contains cubic crystal boron nitride and a binding phase. The binding phase contains an Al compound and a Ti compound. The Ti compound mainly contains nitride of Ti. The Al compound contains at least one kind of compound selected from oxide, nitride and boride of Al. Content of the Al compound is over 0 vol.% and less than 5 vol.%. In a cross section of the cubic crystal boron nitride sintered body, a condition represented by the following formula (1) is satisfied. 0.80≤A/B≤1.20 (1), wherein A represents percentage of length of a boundary surface between the cubic crystal boron nitride sintered body and the Al compound, and B represents percentage of content of the Al compound based on content of the binding phase.SELECTED DRAWING: Figure 1
【課題】立方晶窒化硼素焼結体の耐摩耗性及び耐欠損性を向上させる。【解決手段】立方晶窒化硼素焼結体は、立方晶窒化硼素と結合相を含む。結合相は、Ａｌ化合物と、Ｔｉ化合物とを含む。Ｔｉ化合物は、Ｔｉの窒化物を主に含む。Ａｌ化合物は、Ａｌの酸化物、窒化物、及び硼化物からなる群より選ばれる少なくとも１種の化合物を含む。Ａｌ化合物の含有量は、０体積％を超え５体積％未満である。立方晶窒化硼素焼結体の断面において、下記式（１）で表される条件を満たす。０．８０≦Ａ／Ｂ≦１．２０ ・・・（１）（式（１）中、Ａは、立方晶窒化硼素と結合相との界面の長さに対する、立方晶窒化硼素とＡｌ化合物との界面の長さの割合を表す。Ｂは、結合相の含有量に対する、Ａｌ化合物の含有量の割合を表す。）【選択図】図１
CUBIC CRYSTAL BORON NITRIDE SINTERED BODY, AND TOOL HAVING CUBIC CRYSTAL BORON NITRIDE SINTERED BODY
To improve abrasion resistance and defect resistance of a cubic crystal boron nitride sintered body.SOLUTION: A cubic crystal boron nitride sintered body contains cubic crystal boron nitride and a binding phase. The binding phase contains an Al compound and a Ti compound. The Ti compound mainly contains nitride of Ti. The Al compound contains at least one kind of compound selected from oxide, nitride and boride of Al. Content of the Al compound is over 0 vol.% and less than 5 vol.%. In a cross section of the cubic crystal boron nitride sintered body, a condition represented by the following formula (1) is satisfied. 0.80≤A/B≤1.20 (1), wherein A represents percentage of length of a boundary surface between the cubic crystal boron nitride sintered body and the Al compound, and B represents percentage of content of the Al compound based on content of the binding phase.SELECTED DRAWING: Figure 1
【課題】立方晶窒化硼素焼結体の耐摩耗性及び耐欠損性を向上させる。【解決手段】立方晶窒化硼素焼結体は、立方晶窒化硼素と結合相を含む。結合相は、Ａｌ化合物と、Ｔｉ化合物とを含む。Ｔｉ化合物は、Ｔｉの窒化物を主に含む。Ａｌ化合物は、Ａｌの酸化物、窒化物、及び硼化物からなる群より選ばれる少なくとも１種の化合物を含む。Ａｌ化合物の含有量は、０体積％を超え５体積％未満である。立方晶窒化硼素焼結体の断面において、下記式（１）で表される条件を満たす。０．８０≦Ａ／Ｂ≦１．２０ ・・・（１）（式（１）中、Ａは、立方晶窒化硼素と結合相との界面の長さに対する、立方晶窒化硼素とＡｌ化合物との界面の長さの割合を表す。Ｂは、結合相の含有量に対する、Ａｌ化合物の含有量の割合を表す。）【選択図】図１
CUBIC CRYSTAL BORON NITRIDE SINTERED BODY, AND TOOL HAVING CUBIC CRYSTAL BORON NITRIDE SINTERED BODY
立方晶窒化硼素焼結体、及び、立方晶窒化硼素焼結体を有する工具
FUKUSHIMA YUICHIRO (author)
2019-09-19
Patent
Electronic Resource
Japanese
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