POSTER A NEW HIGH PROPERTY THERMAL INSULATION FOR HIGH TEMPERATURE

At present,the thermal insulations used in high temperature conditions,such as the insulations in CVD furnace, graphitizing furnace, in metallur-gical fields, are almost carbon-- felts, carbon black and coke. As we know, the carbon felts are made from short carbon fiber,and the coke consists of grains of disordered shape. Some shortcomings are brought about by the proper-ties of their own, the carbon black and coke usually make the furnace dirty and difficult to clean, the carbon felt is peeled off easily, and can be compressed, even have no compress strength, the thermal insulation coefficient of it changes with the deformation extent. The extra--low density carbon--carbon whic