VITROCERAMIC MATERIAL HAVING SPECIFIC BEHAVIOR IN THERMAL EXPANSION

摘要

P STARTING GLASSES FOR VITROCERAMICS CONTAINING A SOLID QUARTZ H SOLUTION, WITH A VARIATION IN RELATIVE LENGTH OF ALL MORE THAN 1 10 AND WITH A COEFFICIENT OF LINEAR THERMAL EXPANSION LESS THAN 0.1 10K, ARE COMPOUNDS OF (BY WEIGHT) 50-65 SIO, 18-27ALO, 0-1 BO, O-10PO, 2.5-4 LIO, 0-2 NAO, 0-2 KO, 0-0.5 MGO, 1-5ZNO , 0-4CAO, 1-5 BAO, 0-5 TIO, 0-3ZRO AND 0-1.5ASO. /P