Young’s Modulus of In Situ TiB Whiskers in Ti Metal Matrix Composites
The TiB/Ti metal matrix composites (MMCs) with different volume fractions of in situ TiB reinforcements were spark plasma sintered at 1000 °C with a pressure of 20 MPa for 5 minutes in vacuum. The in situ synthesized TiB is whisker shape with a hexagonal transverse section and distributes uniformly and randomly in the Ti matrix. The Young’s modulus of TiB was back-calculated from the elastic properties of the composites using the Halpin-Tsai model. The Young’s moduli of all the composites were found to increase with the increase of TiB volume fraction. The calculated value of TiB Young’s modulus is about 489±83GPa. Values of Young’s moduli of TiB whisker obtained according to different methods were compared and discussed.
Yu Zhou, Shan-Tung Tu and Xishan Xie
Q. C. Meng et al., "Young’s Modulus of In Situ TiB Whiskers in Ti Metal Matrix Composites", Key Engineering Materials, Vols. 353-358, pp. 365-368, 2007