Complaint
Beryllium oxide as the main component of ceramic.Pure beryllium oxide (BeO) belongs to the cubic crystal system.The density of 3.03 g/cm3.Melting point is 2570 ºC.Has a high thermal conductivity, almost equal to the pure aluminum and copper, coefficient of thermal conductivity lambda 200-250 w/(m.K), and good thermal shock resistance.The dielectric constant of 6 ~ 7 (0.1 MHz).Dielectric loss tangent value is about 4 x 10-4 (0.1 GHz).The biggest drawback is powder, toxic and make contact with the wound is difficult to heal.Ingredients such as beryllium oxide powder as raw material adding alumina through high heat sintering.Manufacturing the ceramic need good protective measures.
Beryllium oxide in high temperature medium containing moisture, volatile increases, volatile began 1000 ºC, and with the increase of temperature volatilize quantity, this will bring difficulties to the production, some countries have not production.But products performance, although the price is higher, there is still a big demand.Used for large scale integrated substrate, high power laser tube, gas transistor radiator shell, the material such as microwave output window and a neutron moderator
