Used in high-performance ceramics due to its excellent thermal conductivity and electrical insulation, making it ideal for electronic substrates and insulators in high-power devices. Commonly found in aerospace and defense applications where materials must withstand extreme temperatures. Also utilized in nuclear reactors as a neutron reflector or moderator because of its low neutron absorption cross-section. Its ability to dissipate heat efficiently makes it valuable in semiconductor manufacturing and laser systems. Handling requires caution due to toxicity when inhaled.