单词 | pyrolytic |
释义 | pyrolyticadj. Chemistry. Of or relating to pyrolysis; involving or produced by pyrolysis. ΘΚΠ the world > matter > chemistry > chemical reactions or processes > [adjective] > of or relating to named chemical reactions or processes > having undergone pyrolysis > involving or produced by pyrolytic1881 pyrolithic1970 1881 J. L. W. Thudichum in Ann. Chem. Med. 2 v. 89 In opium-smoking a portion of the morphia is volatilised undecomposed, and I therefore experimentalised with the pyrolytic vapours of opium. 1922 B. T. Brooks Chem. Non-benzenoid Hydrocarbons i. 36 Small differences of operating temperature may cause very great difference in the character of the pyrolytic products. 1936 Chem. Abstr. 30 6176 Some general laws of pyrolytic reactions..are proved thermodynamically. 1986 Sunday Express Mag. 12 Oct. 58/4 It also has a pyrolytic cleaning cycle which reduces grease and residue to ash in three hours. 1994 Sci. News 21 May 331/1 Toxicological, metabolic, and pyrolytic data on the ingredients added to cigarette tobacco. Compounds pyrolytic carbon n. = pyrolytic graphite n. ΘΚΠ the world > matter > chemistry > organic chemistry > carbon > [noun] > graphite graphite1796 pyrolytic carbon1946 1946 Electronic Engin. 18 66 A new component..for use in electrical communications equipment..is the pyrolytic or cracked carbon resistor. 1966 Economist 20 Aug. 754/2 New fuels, pellets rolled and coated in pyrolytic carbon..have overcome a good deal of the radio-active contamination problem. 1992 Internat. Jrnl. Artific. Organs 15 172 Physical vapour deposition is used to coat vascular prostheses with pyrolytic carbon. pyrolytic graphite n. a strong, heat-resistant form of graphite with a highly ordered structure, deposited from vaporized products of hydrocarbon pyrolysis and used as a coating, reinforcing, or structural material in rocket motors, missile nose cones, furnaces, etc. ΚΠ 1959 Nature 14 Feb. 455/1 The specific resistivity in the c-axis of all samples of pyrolytic graphite was high. 1970 Daily Tel. 22 Jan. 18 Makers of the coloured pipes said the bowls were made of ‘pyrolitic graphite’, a very hard substance used in the making of nose-cones for missiles. 1996 Fusion Technol. 29 529/1 The Phase-III Outboard Pump Limiter is a heat sink made of pyrolytic graphite armor brazed to water-cooled copper tubes. Derivatives pyroˈlytically adv. by means of pyrolysis; with respect to pyrolysis. ΘΚΠ the world > matter > chemistry > chemical reactions or processes > [adverb] > by means of named chemical reactions or processes > by means of pyrolysis pyrolytically1909 1909 U.S. Patent 915,946 6/2 The process of making formaldehyde which consists in converting carbon into producer gas, causing the producer gas to act upon a metallic carbonate..to form a formate, pyrolytically decomposing the formate into formaldehyde and carbonate. 1956 Amer. Scientist 44 356 This reaction was not highly reproducible pyrolytically. 2003 M. G. Hutchins in M. Santamouris Solar Thermal Technologies for Buildings iii. 48 Only the pyrolytically deposited low-emittance coating..can withstand the high temperatures necessary for the formation of the fused glass edge seal. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < adj.1881 |
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