The sintering temperature of laser ceramics compacts is usually about 200–300°c below the melting point of the corresponding composition. The choice of sintering temperature is determined by the growth of ceramics grains because there is a temperature point where the rate of grain growth increases sharply.

How do you select sintering temperature in powder metallurgy?

In powder metallurgy, the selected sintering temperature is always lower than the melting point of the primary metal in the material. However, the selected temperature is high enough to promote neck formation at the point of contact between adjacent particles, although channels remain between the necks.

What is the temperature in sintering zone?

In the sintering zone, where temperatures vary by the material being sintered, a low dew-point atmosphere in the range of -29°C to -40°C (-20°F to -40°F) aids in oxide reduction to promote bonding of the powder-metal particles together.