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Pneumatic instrument for determining glass filament thickness
Abstracts of journals Compiled b y Dr H. A. Barker, L Bell, B. Gill and R. Warren.
GENERAL
Alkali glass for the production of continuous glass fibre Kolesov, Yu. I. and Kolesova A. I.
Glass and Ceramics, Vol. 30 No 1 (1973) pp 41-43 Russian investigations of alkali glasses for fibre production, to replace the currently used alumino-borosilicate glass and thus reduce the cost of glass reinforcing filaments, are described. The state of the art in Russia is" apparently much less advanced than in the West.
Properties and applications of directionally-solidified eutectic alloys Btirger, R. Neue Hiitte, Vo118, No 8 (Aug 1973) pp 475-478 (in German) The preparation and properties of directionally-solidified eutectic composites are briefly reviewed. The possible applications of those materials that have so far been successfully produced are discussed. Attention is directed towards their mechanical, magnetic, electrical and optical properties.
Pneumatic instrument for determining glass fdament thickness Zaporozhets, V. P. and Ivashchenko, V. A. Glass and Ceramics, Vo129, No 2 (1972) pp 125-126 A pneumatic instrument capable of monitoring the thickness of a glass t'dament is described. It is said to be portable and suitable for use in production conditions.
METAL MA TRICES
Effect of copper-clad graphite on the properties of iron-based sintered materials Yas', D. S. et al. Soviet Powder Metallurgy and Metal Ceramics, Vo111, No 6 (Jun 1972) pp 494-497 The production of an anti.friction material is described: the material consists of an iron-based alloy matrix containing copper-coated graphite particles. The optimum conditions for the sintering of such an alloy are described. The coppe r coating
132
on the graphite particles prevents the inhibition of sintering that the graphite normally causes.
Electrical resistivity of fibre composites Rybal'chenko, M. K., Ustinov, L. M. and Zhamnova, V. I. Soviet Powder
Metallurgy and Metal Ceramics, Vol I1, No 5 (May 1972)pp 393-395 It is proposed that the electrical resistivity of a composite reinforced with aligned, discontinuous fibres is the same as that of an otherwise similar composite reinforced with aligned continuous fibres. This hypothesis was confirmed experimentally with composites of between 10 and 60 volume percent of tungsten wires in a copper matrix. Specimens with discontinuous fibres and that deviated from this rule were found to be porous.
Electrodeposited composite coatings Kedward, E. C. Cobalt, No 3 (JulySept 1973) pp 53-59 A review is made of the methods of producing composite coatings by electrodeposition. Basically the method involves electrodeposition from a conventional electroplating solution that contains a suspension of particles of the proposed reinforcing material. The coatings that have been successfully produced are discussed. They include both particulate and fibre reinforced composites.
The galvanic production of fibre reinforced metals Wittich, W. Metall, Vol 2 7 No 10 (Oct 1973)pp 996-1003 (in German) A method is described of producing thin-walled pipes of directionaUyreinforced composites of boron fibres in matrices of copper or nickel by electroforming. Fibres of boron Borsic, or nitrided boron were electroplated with copper or nickel while being continuously wound into pipes. The breaking strength of the composites in the fibre direction was measured at temperatures up to 500°C.
Production, properties and uses of fibre-reinforced aluminium Friedrich, E. and Siegal, R.
Neue Hiitte, Vo118, No 8 (Aug 1973) pp 461-465 (in German) The preparation and properties of aluminium reinforced with differ ent types of fibres are reviewed. The types of reinforcing fibres include metal wires and whiskers; non-metallic polycrystalline fibres such as oxides and carbon; and composite fibres such as boron-coated tungsten.
Thermal expansion of two-phase texturized composite materials Kozlova, R. F. and Rabkin, V B. Soviet Powder Metallurgy and Metal Ceramics, Vol II, No 3 (Mar 1972) pp 234-239 A theoretical expression is derived to predict the thermal expansion as a function of temperature and composition of two-phase materials which have been deformed plastically to produce a textured microstructure. The behaviour of Mo-Cu alloys was investigated experimentally in the light of the theory.
CEfiAMIC MA TRICES
Synthesis-fabrication of A 12 O3" tungsten carbide composite Crayton, P. H. and Greene, E. E. Journal of the American Ceramic Society, Vol56, No 8 (Aug 1973) pp 423-426 A composite of 70 volume percent A1203 and 30 volume percent WC was prepared by hot-pressing a mixture of A1303, WO3 and carbon powders at temperatures up to 1600°C. Under suitable conditions, a fine-grained material, close to theoretical density and consisting of WC dispersed in A1203 was obtained.
RESIN MA TRICES
A deformational mechanism in particulate f'dled glassy polymers Lavengood, R. E., Nicolais, L. and
COMPOSITES
. MAY
1974
GENERAL
Alkali glass for the production of continuous glass fibre Kolesov, Yu. I. and Kolesova A. I.
Glass and Ceramics, Vol. 30 No 1 (1973) pp 41-43 Russian investigations of alkali glasses for fibre production, to replace the currently used alumino-borosilicate glass and thus reduce the cost of glass reinforcing filaments, are described. The state of the art in Russia is" apparently much less advanced than in the West.
Properties and applications of directionally-solidified eutectic alloys Btirger, R. Neue Hiitte, Vo118, No 8 (Aug 1973) pp 475-478 (in German) The preparation and properties of directionally-solidified eutectic composites are briefly reviewed. The possible applications of those materials that have so far been successfully produced are discussed. Attention is directed towards their mechanical, magnetic, electrical and optical properties.
Pneumatic instrument for determining glass fdament thickness Zaporozhets, V. P. and Ivashchenko, V. A. Glass and Ceramics, Vo129, No 2 (1972) pp 125-126 A pneumatic instrument capable of monitoring the thickness of a glass t'dament is described. It is said to be portable and suitable for use in production conditions.
METAL MA TRICES
Effect of copper-clad graphite on the properties of iron-based sintered materials Yas', D. S. et al. Soviet Powder Metallurgy and Metal Ceramics, Vo111, No 6 (Jun 1972) pp 494-497 The production of an anti.friction material is described: the material consists of an iron-based alloy matrix containing copper-coated graphite particles. The optimum conditions for the sintering of such an alloy are described. The coppe r coating
132
on the graphite particles prevents the inhibition of sintering that the graphite normally causes.
Electrical resistivity of fibre composites Rybal'chenko, M. K., Ustinov, L. M. and Zhamnova, V. I. Soviet Powder
Metallurgy and Metal Ceramics, Vol I1, No 5 (May 1972)pp 393-395 It is proposed that the electrical resistivity of a composite reinforced with aligned, discontinuous fibres is the same as that of an otherwise similar composite reinforced with aligned continuous fibres. This hypothesis was confirmed experimentally with composites of between 10 and 60 volume percent of tungsten wires in a copper matrix. Specimens with discontinuous fibres and that deviated from this rule were found to be porous.
Electrodeposited composite coatings Kedward, E. C. Cobalt, No 3 (JulySept 1973) pp 53-59 A review is made of the methods of producing composite coatings by electrodeposition. Basically the method involves electrodeposition from a conventional electroplating solution that contains a suspension of particles of the proposed reinforcing material. The coatings that have been successfully produced are discussed. They include both particulate and fibre reinforced composites.
The galvanic production of fibre reinforced metals Wittich, W. Metall, Vol 2 7 No 10 (Oct 1973)pp 996-1003 (in German) A method is described of producing thin-walled pipes of directionaUyreinforced composites of boron fibres in matrices of copper or nickel by electroforming. Fibres of boron Borsic, or nitrided boron were electroplated with copper or nickel while being continuously wound into pipes. The breaking strength of the composites in the fibre direction was measured at temperatures up to 500°C.
Production, properties and uses of fibre-reinforced aluminium Friedrich, E. and Siegal, R.
Neue Hiitte, Vo118, No 8 (Aug 1973) pp 461-465 (in German) The preparation and properties of aluminium reinforced with differ ent types of fibres are reviewed. The types of reinforcing fibres include metal wires and whiskers; non-metallic polycrystalline fibres such as oxides and carbon; and composite fibres such as boron-coated tungsten.
Thermal expansion of two-phase texturized composite materials Kozlova, R. F. and Rabkin, V B. Soviet Powder Metallurgy and Metal Ceramics, Vol II, No 3 (Mar 1972) pp 234-239 A theoretical expression is derived to predict the thermal expansion as a function of temperature and composition of two-phase materials which have been deformed plastically to produce a textured microstructure. The behaviour of Mo-Cu alloys was investigated experimentally in the light of the theory.
CEfiAMIC MA TRICES
Synthesis-fabrication of A 12 O3" tungsten carbide composite Crayton, P. H. and Greene, E. E. Journal of the American Ceramic Society, Vol56, No 8 (Aug 1973) pp 423-426 A composite of 70 volume percent A1203 and 30 volume percent WC was prepared by hot-pressing a mixture of A1303, WO3 and carbon powders at temperatures up to 1600°C. Under suitable conditions, a fine-grained material, close to theoretical density and consisting of WC dispersed in A1203 was obtained.
RESIN MA TRICES
A deformational mechanism in particulate f'dled glassy polymers Lavengood, R. E., Nicolais, L. and
COMPOSITES
. MAY
1974