Ceramic aerogel high-temperature air pressure sintering device with uniform temperature zone

Abstract

The invention discloses a ceramic aerogel high-temperature air pressure sintering device with a uniform temperature zone, and belongs to the technical field of ceramic aerogel preparation. The ceramic aerogel high-temperature air pressure sintering device comprises a furnace body, a motor, a connecting rod and blades, wherein a hole through which the connecting rod can penetrate is formed in the top of the furnace body, the end, extending into the furnace body, of the connecting rod is connected with the blades, and the end, outside the furnace body, of the connecting rod is connected with the motor; the motor can drive the connecting rod to rotate; and the outer wall of the furnace body is a high-pressure furnace wall, a heat preservation layer is tightly attached to the high-pressure furnace wall, and heating bodies used for heating ceramic aerogel are arranged in an inner cavity of the furnace body. According to the high-temperature and high-pressure air pressure furnace capable of regulating and controlling the temperature and atmosphere in the furnace, mechanical transmission of the motor is adopted as power, the carbon/carbon composite blades at the tail ends of the connecting rod rotate, the atmosphere in the furnace is pushed to flow, and the uniformity and leakproofness of the temperature in the furnace are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of ceramic airgel preparation, in particular to a ceramic airgel high-temperature pressure sintering device with uniform temperature range. Background technique [0002] As one of the ten new materials that will change the world, airgel is the solid with the smallest density and lightest weight in the world, known as "solid smoke". Aerogels have extremely broad applications in military, aerospace, electronic chip manufacturing, pharmaceutical production, and civilian applications. Ceramic airgel is composed of nanoparticles or nanowires to build a porous structure, which has unique high temperature stability, and the common ones are SiC, SiO 2 、Al 2 o 3 and ZrO 2 Wait for airgel. Although ceramic airgel materials are in great demand, aerogels produced by freezing are expensive and produced in small quantities. The research team of Xi'an Jiaotong University adopted the method of high temperature and pre...

AI Technical Summary

Problems solved by technology

[0004] At present, a limited number of heating elements are usually added in the furnace to alleviate the problem of excessive temperature difference, but this inevitably reduces the effective space of the furnace cavity and limits the sintering preparation of large-sized ceramic aerogels.

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