Fig. 3: Characterization of the USS process by twisting BT ceramics.
From: Programmable and rapid fabrication of complex-shape ceramics
a Schematic illustrations of twisted angles of the carbon felt carrier and enveloped ceramic specimen. b Digital images of the BT green compact and the carbon felt heater/carrier. The L, D, and H represent the length, width, and thickness of the carbon felt, respectively. The l, d, and h represent the length, width, and thickness of the ceramic green compact. c Processing stability characterization, illustrating that the processing routes have no significant effects on the final shapes of USS specimens. d Quantitative study on the shape formation of twisting BT ceramics, where the points denote output angles of samples with different relative lengths, widths, and thicknesses at input angles of 60, 120, and 180 degrees, respectively. The solid lines denote ideal values of output angles. The experimental data show that the relative length is the main geometrical factor affecting (linearly) the final shapes of the twisting ceramics. e Twisting rate as a function of processing temperature. The red points represent failed testing speed (too fast). Specifically, the twisting angles of the as-fabricated ceramics cannot reach 95% of the baseline (ideal) values by using this failed twisting rate. The error bar denotes the slight temperature variation during processing.
