PhD Thesis_RuiMSMartins.pdf - RUN UNL

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In-situ XRD studies during growth of Ni-Ti SMA films and their complementary ex-situ characterization Appendix Appendix 221
In-situ XRD studies during growth of Ni-Ti SMA films and their complementary ex-situ characterization APPENDIX A. PROPERTIES OF NiTiNOL Transformation Properties Transformation temperature..................................................................................−200 to 110 ºC Latent heat of transformation........................................................................................5.78 cal/g Transformation strain (for polycrystalline material) for a single cycle .......................................................................................................................................……..8 % for 100 cycles................................................................................................................…...................................6 % for 100 000 cycles........................................…………………………………………………...……………......4 % Hysteresis....................................................................................................................30 to 50 ºC Physical Properties Melting point....................................................................................................1300 ºC (2370 ºF) Density...................................................................................................6.45 g/cm 3 (0.233 lb/in 3 ) Thermal conductivity austenite........................…………………………………………………..0.18 W/cm * ºC (10.4 BTU/ft * hr * ºF) martensite....................…………………………………………………...0.086 W/cm * ºC (5.0 BTU/ft * hr * ºF) Coefficient of thermal expansion austenite..................................………………………………………………….........11.0×10 -6 / ºC (6.11×10 -6 / ºF) martensite.......................................................................................................................6.6×10 -6 / ºC (3.67×10 -6 / ºF) Specific heat...........................................................................0.20 cal/g * ºC (0.20 BTU/lb * ºF) Corrosion performance...................................................................................................excellent Electrical and Magnetic Properties Resistivity austenite................………………………………………….......approx. 100×10 -6 ohms * cm (39×10 -6 ohms * in) martensite..................…………………………………………....approx. 80×10 -6 ohms * cm (32×10 -6 ohms * in) Magnetic permeability......................................................................................................< 1.002 Magnetic susceptibility..........................................................................................3.0×10 6 emu/g Appendix 222
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RUI MIGUEL DOS SANTOS MARTINS IN-SI
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ACKNOWLEDGEMENTS The research work
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At CENIMAT, Luís Pereira also carr
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SUMÁRIO O fabrico de películas fi
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LIST OF SYMBOLS AND ABREVIATIONS α
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TABLE OF CONTENTS Introduction ....
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LIST OF FIGURES Fig. 1.1: Power/wei
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Fig. 2.3: Calculated integrated pho
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Fig. 3.25: Pole figures of Ni-Ti B2
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Fig. 3.66: SAED pattern obtained on
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LIST OF TABLES Tab. 1.1: Factors af
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In-situ XRD studies during growth o
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