Our Silicon Nitride powder, gray, is new material which produces under the specific high temperature and high pressure, the main component of it is Silicon Nitride. It occupies 80% --97.5% of the total Ingredient, The products of different purity and composition can be produced to satisfy user's need.

1. Principal Characters

(1) Fine corrosion and erosion-resistance, thermal shock resistance, wear-resistance; It can be employed under the temperature of 1900 Celsius degrees.
(2) Fine disintegration resistance, rather stable chemical ingredient and thermal conductivity.
(3) For containing nitride, this product possesses the properties of little expansion ratio, high thermal conductivity, high degree of firmness, non-contractive when heating up.
(4) High intensity and durable.
(5) Under high temperature, an oxide film will develop on the surface, so as to protect inner material from being affected by chemical reactions.

2. Key Properties

High strength over a wide temperature range
High fracture toughness
High hardness
Outstanding wear resistance, both impingement and frictional modes
Good thermal shock resistance
Good interface compatibility

Good chemical resistance