Intermediate Phases in Ti3SiC2 Synthesis from Ti/SiC/C Mixtures Studied by Time-Resolved Neutron Diffraction |
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| Authors: | Erdong Wu Erich H Kisi Daniel P Riley Ronald I Smith |
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| Affiliation: | Department of Mechanical Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia;ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, United Kingdom |
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| Abstract: | The reactive sintering of 3Ti/SiC/C to form the layered ternary carbide Ti3SiC2 was studied in situ by time-resolved neutron powder diffraction. A number of intermediate processes occur during the synthesis beginning with the α-β transition in Ti. Concurrent with the α-β transition, two intermediate phases, TiC x and Ti5Si3C x ( x ≤ 1), form. These phases account for almost the entire sample in the range 1500–1600°C beyond which they react with each other and a small amount of free C to form the product phase Ti3SiC2. |
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| Keywords: | titanium silicon carbide phases |
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