A meeting of materials

作者：Rutherford Melanie^*

来源：Materials World, 2013, 21(5): 30-31.

• Biomorphic ceramics
• Ceramic composites
• Energy dispersive X ray spectroscopy
• Molten salt mixtures
• Molten salt synthesis
• Porous carbon template
• Potassium fluorides
• Science and Technology

Researchers at Wuhan University of Science and Technology in China are advancing the development of biomorphic ceramics using molten salt synthesis (MSS). Before wood can be converted to a porous carbon template it must be completely free of moisture, which the scientists did by drying out the material at around 110°C for 24 hours. It was then heated in an argon furnace for three hours at 650°C to complete the conversion process. The wooden templates were then covered by a molten salt mixture of potassium chloride (KCl) and potassium fluoride (KF), in which titanium metal powder had been dissolved. The scientists then examined the various ceramic composites produced, using a combination of X-ray diffraction (XRD), SEM analysis and energy dispersive X-ray spectroscopy (EDS) to establish the chemical ratio of titanium and carbon in the coatings. Temperature, molar ratio and annealing time were all found to affect the nature of the ceramics produced.

• 出版日期2013
• 单位武汉科技大学