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Chapter VII Reactivity at Dislocation….
Log W
-1.0
-1.1
-1.2
-1.3
-1.4
-1.5
-1.6
0.00320 0.00324 0.00328 0.00332 0.00336
1/T
270
Pure KDP
KDP + 0.3 Wt. % L-threonine
KDP + 0.4 Wt. % L-threonine
KDP + 0.5 Wt. % L-threonine
Figure:7.5 Plots of log W 1/T for pure and L-threonine doped KDP crystal.
Log W
-1.0
-1.1
-1.2
-1.3
-1.4
-1.5
-1.6
0.00320 0.00324 0.00328 0.00332 0.00336
1/T
Pure KDP
KDP + 0.3 Wt. % DL-methionine
KDP + 0.4 Wt. % DL-methionine
KDP + 0.5 Wt. % DL-methionine
Figure :7.6 Plots of log W 1/T for pure and DL-methionine doped KDP crystal.
From table 7.1, one can observe that the activation energy is highest for pure
KDP crystals compared to amino acids doped KDP crystals. Further, the
activation energy slowly decreases from L-histidine to L-threonine and then to
DL-methionine. The lower values of activation energy for amino acids doped