The team's most fertile period of technical innovation came in the 1970s and 1980s when Gordon Murray became technical director. During 1976, the team introduced carbon-carbon brakes to Formula One, which promised reduced unsprung weight and better stopping performance due to carbon's greater coefficient of friction. The initial versions used carbon-carbon composite brake pads and a steel disc faced with carbon "pucks." The technology was not reliable at first; in 1976, Carlos Pace crashed at at the Österreichring circuit after heat build-up in the brakes boiled the brake fluid, leaving him with no way of stopping the car. By 1979, Brabham had developed an effective carbon-carbon braking system, combining structural carbon discs with carbon brake pads. By the late 1980s, carbon brakes were used by all competitors in almost all top level motor sports.