DIAMOND MAKING RESEARCH.
■Sir Charles Parsons, of tnrbiii-e fame, has for many years* conducted experiments having for their object the production of diamond.- Considerable interest'was aroused byt be announce-, ment that he would disclose the results of hi* investigations before r,, " < Royal 'Society. The. proceedings' we>-- of a private nature, bint a. short oflicial. resumo was published-, in which'it was stated that the main conclusions arrived at. were : That graphite can-nob be converted into diamond by heat and pressure alone.' within the" limits reached in. the experiments. That there is no 'distinct evidence, ■that- any of the chemical reactions under ■ pressures have yielded diamond. That the only undoubted source of diamond is from iron'-previously heated to high temperature and then cooled. That diamond is not produced' by bulk pressure as previously supposed, bnfc by the action of the gases occluded in the metal and condensed into the centre on quk-k cooling.
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Nelson Evening Mail, Volume LII, Issue 166, 11 July 1918, Page 3
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151DIAMOND MAKING RESEARCH. Nelson Evening Mail, Volume LII, Issue 166, 11 July 1918, Page 3
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