Green microstructure

B. C. Bonekamp and H.J. Veringa, Green microstructures and their characterization, in R.J. Brook (Ed.), Processing of Ceramics, Part 1. Materials Science and Technology, A Comprehensive Treatment, 17A (1995) 352. 

Uniformity of green microstructure. More important than the green density is the uniformity of the green microstructure and the lack of... 

The resulting monosized and submicrometer particles are easier to process into uniform green microstructures, which results in easier control of the microstructure during densification. This means uniformity of the particle size... 

Unfortunately, it is just this trend towards extremely fine-grained, nanoscale, raw materials that often prevents the realization of the expected progress in the mechanical properties, simply because with the reduced particle sizes there is an increased risk of defects in the green microstructure. 

Roosen A, Bowen HK (1988) Influence of various consolidation techniques on the green microstructure and sintering behavior of alumina powders. J Am Ceram Soc 71 970-977... 

Hirata Y., Onoue K. and Tanaka Y., 2003. Effects of pH and concentration of aqueous alumina suspensions on pressure filtration rate and green microstructure of consolidated powder cake, J. Ceram. Soc. Jpn., Ill, 93-99. 

Experimentally, it is found that S is approximately constant and that 4> is a function of the density only (see Chapter 8). For a given powder consolidated to a given green microstructure, if it is assumed that the grain size is dependent on the sintered density only, then, with slight rearrangement, Eq. (12.5) becomes... 

Saito, Y., Tanaka, S., Uchida, N., Uematsu, K. (2002). CLSM for ceramic green microstructure. Journal of the American Ceramic Society Bulletin, S7(l), 35-38. 

Nearest to the final microstructure is the firing operation, and most attention was initially concentrated on it. However, as a result of great advances in understanding how the green microstructure evolves into the final microstructure, as well as the recognition of the limitations of sintering... 

In slip casting, initially, it is necessary to make up a suspension of the powder in a liquid and then, by a sort of filtration, a compact layer of the powder is deposited on the surface of a porous mould (Figure 5). The green microstructure in this case is basically developed as the liquid is... 

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