Patent ID: 11878933
Assignee: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
Field: Machine tools (Mechanical engineering)
Classification: CPC C  B  F | IPC B  C  F

Claim 11:
12. The process as claimed in claim 1, in which the base product has a composition such that, for a total of more than 90%, as mass percentages on the basis of the oxides:
ZrO2: 26 to 45%;
Al2O3: 40 to 60%;
SiO2: 5 to 35%;, or such that
ZrO2: 50 to less than 80%;
Al2O3: 15 to 30%;
SiO2: 5 to 15%;, or such that
ZrO2:≥80%;
Al2O3:≥5%;
SiO2: ≤12%;, or such that
10%<ZrO2≤25%;
50%<Al2O3<75%;
5%<SiO2<35%.