Calcium Hexaaluminate (CA₆): The Emerging Alumina-Rich Fiber for Thermal Insulation Calcium Hexaaluminate (CA₆) is an advanced alumina-rich material gaining attention for high-temperature insulation. With excellent thermal stability, low thermal conductivity, and strong resistance to thermal shock, CA₆ fibers and ceramics are ideal for furnaces, kilns, and refractory systems requiring durable, lightweight insulation. Source URL :- https://moatcity.com/blog-building-materials/calcium-hexaaluminate-ca%e2%82%86-the-emerging-alumina-rich-fiber-for-thermal-insulation/