05281260 is referenced by 84 patents and cites 20 patents.

A sintered hard metal compact for use in earth-boring bits comprises 80 to 94% by weight tungsten carbide particles, 5.4 to 18% by weight cobalt particles and 0.6 to 2.0% by weight nickel particles wherein the ratio of cobalt to nickel is approximately 9:1 by weight. These materials are formed according to conventional powder-metallurgy techniques to provide a hard, sintered compact for use in earth-boring bits having superior properties for drilling applications.

Title
High-strength tungsten carbide material for use in earth-boring bits
Application Number
7/843823
Publication Number
5281260
Application Date
February 28, 1992
Publication Date
January 25, 1994
Inventor
Larry P Pelty
Houston
TX, US
Anil Kumar
Sugarland
TX, US
Agent
Felsman Bradley Gunter & Dillon
Assignee
Baker Hughes Incorporated
TX, US
IPC
C22C 29/00
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