TiC-MgO composite: an X-ray transparent and machinable heating element in a multi-anvil high pressure apparatus. Issue 2 (2nd April 2020)

• Record Type: Journal Article
• Authors: Xu, Fang; Xie, Longjian; Yoneda, Akira; Guignot, Nicolas; King, Andrew; Morard, Guillaume; Antonangeli, Daniele
• Is Part Of: High pressure research. Volume 40:Issue 2(2020)
• Page Start: 257
• Page End: 266
• Publication Date: 2020-04-02
• Subjects: Multi-anvil -- heater -- TiC-MgO composite -- X-ray transparency -- high temperature; High pressure (Science) -- Periodicals; High pressure (Technology) -- Periodicals; 536.41
• DOI: 10.1080/08957959.2020.1747452
• Languages: English
• ISSNs: 0895-7959

Abstract

ABSTRACT: TiC-MgO composite was developed as a heating element for X-ray study in the multi-anvil high pressure apparatus. We synthesized TiC-MgO blocks (50–70 wt.% of TiC) by compression in a cold isostatic press followed by baking in a gas flow furnace. Heaters of tubular shape were manufactured from the synthesized blocks either by lathe or numerically controlled milling machine. The so-produced heating elements have been proved to generate temperatures up to 2250 K at 10 GPa, condition where classical graphite heaters are not suitable anymore due to graphite-diamond transition. These new heaters have been successfully used for in situ X-ray radiography and diffraction measurements on liquid Fe alloys, exploiting excellent X-ray transparency.