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Publikováno v:
Surface and Coatings Technology. 82:218-225
The wear behaviour of vacuum plasma sprayed (VPS) and air plasma sprayed (APS) alumina coatings was investigated against a number of sliding counterfaces and compared with that of bulk material. Both reciprocating wear tests using diamond cones and s
Publikováno v:
Thin Solid Films. 198:139-148
A detailed study has been made of the erosion behaviour of air plasma sprayed (APS) and vacuum plasma sprayed (VPS) tungsten coatings. The erosion rates observed under a variety of test conditions are discussed in terms of wear mechanisms, coating mi
Publikováno v:
Thin Solid Films. 154:125-141
Internal stress is an important parameter in coating technology since it often relates to the maximum coating thickness which can be deposited without spallation, and this applies to coatings produced by both physical vapour deposition (PVD) and ther
Autor:
J.L. Woodhead, K.T. Scott
Publikováno v:
Thin Solid Films. 95:219-225
The scope of sol-gel methods for preparing plasma spray powders has been extended by developing a technique in which small amounts of aqueous sols are made to carry particulate material and then gelled and fired to yield free-flowing spherical partic
Autor:
J.P. Coad, K.T. Scott
Publikováno v:
Thin Solid Films. 80:279-288
The suitability of plasma spraying, sputter ion plating (SIP) and plasma-activated vapour deposition (PAVD) to deposit metal and ceramic coatings onto copper and Inconel for potential use in limiter devices was investigated. The coatings produced wer
Autor:
J.H. Buddery, K.T. Scott
Publikováno v:
Journal of Nuclear Materials. 5:81-93
A study of the melting of high burn-up irradiated uranium has been made, with particular reference to the release of the fission product inert gases. Density changes were recorded by a cine-photographic technique and, due to the gross swelling caused
Publikováno v:
Journal of Nuclear Materials. 23:121-138
Apparatus is described for the remote thermogravimetry of irradiated uranium dioxide spheres. The results of isothermal oxidation in dry air at temperatures between 320° and 380° C are discussed. The oxidation is best described as a first order rea
Autor:
J.H. Buddery, K.T. Scott
Publikováno v:
Journal of Nuclear Materials. 5:94-100
The release of Kr 85 from high burnup uranium on cycling through the phase changes has been studied by a gas entrainment and counting technique. It has been shown that significant releases occur, especially at the α—β phase transformation. The ma
Autor:
K.T. Harrison, K.T. Scott
Publikováno v:
Journal of Nuclear Materials. 8:307-319
The use of a new automatically recording microbalance and its application to thermogravimetry are described. This technique is applied to the investigation of the oxidation of various uranium dioxide preparations in air at temperatures up to 800 deg