Northwestern Polytechnical University

Taiwen Huang

Haijun Su

Wenchao Yang

Yinuo Guo

Jun Zhang

Zhonglin Shen

Min Guo

Dianyun Wang

Haifang Liu

Zheliang Liu

Hui Shen

Yuan Liu

Shaoying Li

Di Zhao

Minghui Yu

Lin Liu

Huating Chang

A device and a method for continuous temperature gradient heat treatment of a rod-shaped material are disclosed. The furnace body of the device includes an upper heating zone and a lower heating zone inside, which are independently controlled in temperature by means of an upper heating power supply and a lower heating power supply. Moreover, both the upper heating zone and the lower heating zone are closed heating zones. The closed heat insulation plates could prevent heat loss and ensure precise temperature control of the upper heating zone and the lower heating zone. In the device, a vacuum pumping equipment is included; an annular radiation screen is configured between the upper heating zone and the lower heating zone, and the rod-shaped material is not in contact with the annular radiation screen The rod-shaped material conducts one-dimensional heat transfer along the axial direction.

Device and method for continuous temperature gradient heat treatment of rod-shaped material

The disclosure provides a eutectic ceramic thermal barrier material and a preparation method thereof, which relates to the field of composite materials. The present disclosure provides a eutectic ceramic thermal barrier material comprising a nickel-based superalloy substrate, an intermediate binding layer and a eutectic ceramic cladding layer stacked sequentially; the intermediate binding layer comprises a NiCoCrAlY binding layer; the eutectic ceramic cladding layer comprises an AlO/GdAlObinary eutectic ceramic coating or an AlO/GdAlO/ZrOternary eutectic ceramic coating. The eutectic ceramic thermal barrier material provided by the present disclosure has good high temperature resistance, good oxidation resistance and excellent mechanical properties.

Eutectic ceramic thermal barrier material and preparation method thereof

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Xi'an, China

Taiwen Huang