@inproceedings{b2427161184d42b6b7bf42f24b72d6a0,
title = "Powder processing of nickel-aluminum oxide gradient materials",
abstract = "Powder processing methods were developed for the fabrication of graded nickel-aluminum oxide materials. The microstructural gradients within the green powder compacts were controlled by adjusting the composition and thickness of intermediate powder layers. Wet processing was used to produce homogeneous, well dispersed powder mixtures. The suitability of using pressureless sintering, hot pressing, and hot isostatic pressing (HIP) techniques for consolidating the compacts was investigated; the advantages and disadvantages of these methods are discussed. Sintering aids for aluminum oxide were employed to assist densification of the ceramic-rich compositions. The microstructures of the graded materials were characterized, and the results were correlated with the processing conditions. An elastic-plastic finite element model has been developed to predict the residual stress distribution in graded materials compared to sharp interfaces. Initial results have demonstrated the importance of including plasticity in the calculations, and also indicated a strong dependence of residual stresses on specimen geometry.",
author = "Rabin, {B. H.} and Williamson, {R. L.} and Heaps, {R. J.} and Erickson, {A. W.}",
year = "1992",
language = "English",
isbn = "1878954288",
series = "Advances in Powder Metallurgy",
publisher = "Publ by Metal Powder Industries Federation",
pages = "1--9",
booktitle = "Particulate Materials and Processes",
note = "Proceedings of the 1992 Powder Metallurgy World Congress. Part 1 (of 9) ; Conference date: 21-06-1992 Through 26-06-1992",
}