Dependence of the reliability of discharge radiation sources on the structural perfection of sapphire envelopes
Source abstract
Abstract
The factors that determine the reliability of a discharge radiation source are considered. It is shown that the disorientation of blocks and the wall thickness influence the strength sapphire of envelopes. The temperature dependence of the limiting fracture stress of a sapphire tube is studied. The correlation between the curves of the ultimate values of the mechanical strength and the electric power per unit surface of a discharge bulb as a function of the number of blocks of a crystal is revealed. The general technical requirements for corundum tubes used as discharge-lamp envelopes are formulated.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Pigment Synthesis and Properties · Material Properties and Applications · Structural Analysis of Composite Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (8)
Show source-provided references
1. Gavrish, S.V., The Effect of Structural Flaws on the Properties of a Sapphire Shell of a Discharge Radiation Source, Defektoskopiya, 2010, no. 8, pp. 73–81. [Russ. J. Nondestr. Test. (Engl. Transl.), 2010, vol. 46, no. 4, pp. 603–610].10.1134/S1061830910080097 ↗
2. Melankholin, N.M., Metody issledovaniya opticheskikh svoistv kristallov (Methods of Studying Optical Properties of Crystals), Moscow: Nauka, 1970.
3. Metody i pribory dlya kontrolya kachestva kristallov rubina (Methods and Instruments for Testing the Quality of Ruby Crystals), Grum-Grzhimailo, S.V. and Klassen-Neklyudova, M.V., Eds., Moscow: Nauka, 1968.
4. Rubin i sapfir (Ruby and Sapphire) M.V, and Bagdasarov, Kh.S., Eds., Moscow: Nauka, 1974.
5. Brailovskii, V.B., Gavrish, S.V., Gaidukov, E.N., and Ryzhkov, A.E., On Destructive Stresses in Joints of Sapphire Lamps, Svetotekhnika, 1998, no. 2, pp. 16–19.
6. Aric, Loytty, A New Ark Tube for HPS Lamps, Light. Design Applic., 1976, pp. 14–17.10.1177/036063257600600207 ↗
7. Azoyan, S.E., Egorov, L.P., Zatulovskii, L.M., et al., Obtaining of Sapphire Tubes from Melt by the Stepanov Method, Study of Their Properties, and Use High-Pressure Na Lamps in Industry, Izv. AN SSSR, Ser. Fiz., 1979, vol. 43, no. 9, pp. 1953–1962.
8. Brailovskii, V.B., Gaidukov, E.N., Makarova, T.V., et al., Mechanical Strength of Block-Free Profiled Corundum Single Crystals, Elektron. Tekh., Ser. Mater., 1991, no. 1, pp. 53–55.