Sinter forging

Another technique makes use of ultra-fine powders sintered under stress-assisted conditions so the sintering temperature is reduced,38 for instance hot-isostatic pressing, hot pressing, sinter forging, or techniques with fast... 

Kondo, N., Suzuki, Y., and Ohji, T., Superplastic sinter-forging of silicon nitride with anisotropic microstructure formation , J. Am. Ceram. Soc., 1999, 82, 1067-9. 

Figure 10 Powder and Sinter Forging. (From Lorenz 1996)...

The specimen processed by sinter-forging with an anisotropic microstructure exhibited superior high-temperature strengths of 696 and 570 MPa at 1500 and 1600 °C, respectively, [77]. The starting Si3N4 powder contained 8 wt% LU2O3 and 2 wt % Si02. 

Figure 8.11 Schematic illustration of superplastic forging and superplastic sinter-forging techniques for fabricating fibrous-grain-aligned silicon nitrides.

Figure 8.13 Original formed silicon nitride body and superplastically sinter-forged body. Reprinted with permission from Ref [36] 1999, Blackwell Publishing, Inc.

Porous Silicon Nitride Through Sinter-Forging... 

Figure 8.26 Fracture surfaces of porous silicon nitride with fine fibrous grain alignment fabricated through a sinter-forging technique. The porosity is 24%. Illustration courtesy of Naoki Kondo et al.

Sinter forging, which is similar to hot pressing but without confining the sample in a die... 

Hot pressing is the most widely used of the three methods, whereas sinter forging sees little use in ceramic fabrication. 

Dense poly crystalline specimens were prepared by sinter forging. The specimens exhibited excellent phase purity and a strong c-axis texture which was preferentially aligned parallel to the forcing direction. The chemical diffusion coefficient of O, in a pure O atmosphere, could be described by ... 

Sinter-forging. See hot forcing. Sinter-HIP. Also known as cladless... 

Balasubramaniam, S., Keshavan, H., Cannon, W. R. (2005). Sinter forging of rapidly quenched eutectic Al203-Zr02(Y203)-glass powders. Journal of the European Ceramic Society, 25, 1359-1364. doi 10.1016/j.jeurceramsoc.2005.01.010. 

---