Al 52 57 c hapter 6 c onclusions a

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Unformatted text preview: RAM I D SC P ROGRAM I 1 ...................................... 62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 R EFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 v ii LIST OF FIGURES FIGURE PAGE 1 Layered structure of TiS2 . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Trigonal Antiprism (1-T) S t r u c t u r e . . . . . . . . . . . . . . . . . 8 b 3 Trigonal Prism (2-H) Structure . . . . . . . . . . . . . . . . . . . . . 8c 4 TiS Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9a 5 Octahedral and Tetrahedral Site Locations . . . . . . . . . . 10a 6 Preparation of TiS Powder . . . . . . . . . . . . . . . . . . . . . . . . . 12a 2 7 Classical Model of Stage 1 Intercalation . . . . . . . . . . . 17a 8 Classical Model of Stage 2 Intercalation . . . . . . . . . . . 17a 9 Classical Model of Stage 3 Intercalation 2 10 Daumas and Herold Island Model of Staging 8a . . . . . . . . . . . 17a . . . . . . . . . . 18a 11 X-ray Intensity Ratio of Ag/Ti vs X (Group A) . . . . . . 23a 12 X-ray Intensity Ratio of Ag/Ti vx X (Group B) . . . . . . 25a 13 X-ray Diffraction Patterns for X = 0. 0 .20. 0 . 4 0 . . . 27a 14a Lattice Parameter a vs X (Group A) . . . . . . . . . . . . . . . . 28a c vs X (Group A) . . . . . . . . . . . . . . . . 28a 1 4 b Lattice Parameter viii FIGURE PAGE 15a Lattice Parameter a vs X (Group B) . . . . . . . . . . . . . . . . 29a 15b Lattice Parameter c vs X (Group B ) . . . . . . . . . . . . . . . . 29a 16 DSC Sample Chamber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34a 17 Simplified Model of DSC Sample Chamber . . . . . . . . . . . . . 35a 18 Typical DSC Curve (heating) . . . . . . . . . . . . . . . . . . . . . . . . 38a 19 Differential Scanning Calorimeter Cell . . . . . . . . . . . . . 40a 20 dh/dt vs Temperature for Different Scan Rates 21a Order-Disorder Temp . T C vs X . . . . . . 43a . . . . . . . . . ....
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