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(c) Isothermal crystallisation experiments on a lithium disilicate glass sample at 510°C gave the following results: Tim
Posted: Tue May 24, 2022 11:17 am
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- C Isothermal Crystallisation Experiments On A Lithium Disilicate Glass Sample At 510 C Gave The Following Results Tim 1 (38.5 KiB) Viewed 18 times
(c) Isothermal crystallisation experiments on a lithium disilicate glass sample at 510°C gave the following results: Time, t/h Fraction Crystallised, f 0 0.000 24 0.002 48 0.033 60 0.079 73 0.165 87 0.305 100 0.470 112 0.632 123 0.766 140 0.913 By plotting a suitable graph, verify that the crystallisation process obeys the Johnson-Mehl-Avrami equation with a value of the Avrami exponent, n = 4, and determine the rate constant, k. [8 marks]