Sintering is a critical processing technology in the production of ceramic materials that uses high heat to compact ceramic powders into a solid form. Sintering of pure oxide ceramics requires ...

Dense ceramic materials can form in nature under mild temperatures in water. By contrast, man-made ceramics often require sintering temperatures in excess of 1,400 °C for densification.

Traditionally, sintering HfC requires placing the raw materials in a furnace that can reach temperatures of at least 2,200 degrees Celsius -- a process that is time-consuming and energy intensive.

Chao Shen, a graduate student on the team, said once the ceramic specimens are cooled, the dislocations improve the plasticity of ceramics at room temperature. “This method is more widely applicable ...

The cold sintering process (CSP) combines heat, pressure and the use of water to significantly reduce energy use as it lowers the temperatures required to produce ceramics to around 300 degrees ...

Ordinarily, when ceramic items are manufactured, the raw material has to be fired in a kiln at temperatures exceeding 1,000 ºC (1,832 ºF). Needless to say, it's a very energy-intensive process ...

I.C. Ho, “Semiconducting Barium Titanate Ceramics Prepared by Boron-Containing Liquid-Phase Sintering”, Journal of American Ceramic Society, 77 (1994) 829-832. 8. D. Kolar, M. Trintelj and L. Marsel, ...

ZnO varistor ceramics were synthesised by cold sintering/spark plasma sintering and post-annealing treatment. Intriguingly, the ZnO varistor ceramics present ultrahigh potential gradient, high ...

In this study, spark plasma sintering was used to prepare fully dense dual-phase (Zr, Hf, Ta)B2-(Zr, Hf, Ta)C ceramics from self-synthesized equimolar medium-entropy diboride and carbide powders.