LITHIUM ALUMINOSILICATE-BASED MATERIALS WITH NEGATIVE THERMAL EXPANSION COEFFICIENT IN A BROAD TEMPERATURE RANGE, PREPARATION PROCESS AND USE

摘要

New process for obtaining lithium aluminosilicate-based (LAS) ceramic materials having a near-zero and negative thermal expansion coefficient within a temperature range of (-150° C. to 450° C.). These materials are applicable to the manufacture of components that require a high level of dimensional stability.