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Sekercioglu, I.

Publications and source records attributed to Sekercioglu, I..

Ceramic for Silicon-Shaping Dies

Silicon beryllium oxynitride (SiBON) is a promising candidate material for manufacture of shaping dies used in fabricating ribbons or sheets of silicon. It is extremely stable, resists thermal shock, and has excellent resistance to molten silicon. SiBON is a solid solution of beryllium silicate in beta-silicon nitride.

Sekercioglu, I.↗

The interaction of molten silicon with silicon aluminum oxynitrides

Silicon aluminum oxynitride solid solutions (sialons) based on beta-Si3N4 and Si2N2O behave differently in contact with molten silicon. The Si2N2O-based sialons convert to almost pure Si3N4, apparently through a two-step decomposition and solution-precipitation reaction, whereas the beta-Si3N4 sialons are preferentially attacked at the grain boundaries. The composition of the grain-boundary phase appears to control the rate of reaction.

Wills, R. R.↗

Effect of Si3N4 powder reactivity on the preparation of the Si2N2O-Al2O3 silicon aluminum oxynitride solid solution

Dense high-purity silicon aluminum oxynitride was prepared by reactive hot-pressing of an Si3N4-Al2O3-SiO2 mixture. The formation of a single-phase material was found to be critically dependent on the Si3N4 powder in the starting mixture. It is suggested that evolution of a chlorine- and nitrogen-containing species may enhance the reactivity of Si3N4 in this reaction. Densities of O prime sialons are very similar to that of Si2N2O, the widely quoted value in the ceramics literature of 3.1 g/cu cm for the density of Si2N2O being incorrect.

Sekercioglu, I.↗