A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CEMENTED TUNGSTEN CARBIDE BODY AND METHOD OF FORMING THE CEMENTED TUNGSTEN CARBIDE BODY
A cemented tungsten carbide body is formed by mixing a tungsten carbide powder and a cobalt powder together to form a powder mixture. The tungsten carbide powder makes up greater than or equal to 80 weight percent of the powder mixture, while the cobalt binder powder makes up about 1.5 weight percent to about 20 weight percent of the powder mixture. Next, the powder mixture is compacted to form a green compact, and a boron nitride coating is applied to a surface of the green compact to form a coated compact. The coated compact is sintered at a temperature sufficient to melt the cobalt powder, such that boron from the boron nitride coating diffuses into the compact and creates a gradient of metallic cobalt and boron extending inward from the surface. The metallic cobalt content increases from the surface inward, while the boron content decreases from the surface inward.
CEMENTED TUNGSTEN CARBIDE BODY AND METHOD OF FORMING THE CEMENTED TUNGSTEN CARBIDE BODY
A cemented tungsten carbide body is formed by mixing a tungsten carbide powder and a cobalt powder together to form a powder mixture. The tungsten carbide powder makes up greater than or equal to 80 weight percent of the powder mixture, while the cobalt binder powder makes up about 1.5 weight percent to about 20 weight percent of the powder mixture. Next, the powder mixture is compacted to form a green compact, and a boron nitride coating is applied to a surface of the green compact to form a coated compact. The coated compact is sintered at a temperature sufficient to melt the cobalt powder, such that boron from the boron nitride coating diffuses into the compact and creates a gradient of metallic cobalt and boron extending inward from the surface. The metallic cobalt content increases from the surface inward, while the boron content decreases from the surface inward.
CEMENTED TUNGSTEN CARBIDE BODY AND METHOD OF FORMING THE CEMENTED TUNGSTEN CARBIDE BODY
GLEDHILL ANDREW (author) / KAPPAGANTULA VENKATA DURGA PRASAD (author) / THER OLIVIER (author)
2023-11-02
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Cemented carbide body and method for manufacturing the cemented carbide body
| European Patent Office | 2019
Development of Creep-Resistant Tungsten Carbide Copper Cemented Carbide
| British Library Online Contents | 2009