29-09-2012, 12:43 PM
Thermal Analysis
MatE 280 Thermal Analysis 2009.ppt (Size: 3.19 MB / Downloads: 134)
Common Definition of Thermal Analysis
A branch of materials science where the properties of materials are studied as they change with temperature.
Techniques:
Differential Scanning Calorimetry
Dynamic Mechanical Analysis
Thermomechanical Analysis
Thermogravimetric Analysis
Differential Thermal Analysis
Dilatometry
Optical Dilatometry
Dielectric Thermal Analysis
Evolved Gas Analysis
Thermo-Optical Analysis
Production Thermal Analysis of Metals
Thermal Analysis of Foods
Concepts of Thermal Analysis
Temperature
A measure of kinetic energy of molecular motion
Temperature Scales:
Newton (1701): freezing point of water 0, human body 12
Fahrenheit (1714): freezing point of water mixed with NaCl 0, human body 96, freezing point of water 32, boiling point of water 212
Celsius (1742): freezing point of water 0, boiling point of water 100
Kelvin (1848): absolute zero is the temperature at which molecular energy is a minimum and it corresponds to a temperature of -273.15°C
Some Important Temperatures
Absolute zero (precisely by definition): 0 K or −273.15 °C
Coldest measured temperature: 450 pK or –273.14999999955 °C
Water’s triple point (precisely by definition): 273.16 K or 0.01 °C
Water’s boiling point: 373.1339 K or 99.9839 °C
Incandescent lamp: ~2500 K or ~2200 °C
Melting point of tungsten: 3695 K or 3422 °C
Melting point of carbon: 3773.15 K or 3500 °C
Sun’s visible surface 5778 K or 5505 °C
Lightning bolt’s channel 28,000 K or 28,000 °C
Sun’s core 16 MK or 16M°C
Thermonuclear weapon (peak temperature) 350 MK or 350M°C
CERN’s proton vs. nucleus collisions 10 TK or 10 trillion °C
Universe 5.391×10−44 s after the Big Bang 1.417×1032 K 1.417×1032 °C
Thermogravimetric Analysis (TGA)
A technique that permits the continuous weighing of a sample as a function of temperature and/or as a function of time at a desired temperature
MatE 280 Thermal Analysis 2009.ppt (Size: 3.19 MB / Downloads: 134)
Common Definition of Thermal Analysis
A branch of materials science where the properties of materials are studied as they change with temperature.
Techniques:
Differential Scanning Calorimetry
Dynamic Mechanical Analysis
Thermomechanical Analysis
Thermogravimetric Analysis
Differential Thermal Analysis
Dilatometry
Optical Dilatometry
Dielectric Thermal Analysis
Evolved Gas Analysis
Thermo-Optical Analysis
Production Thermal Analysis of Metals
Thermal Analysis of Foods
Concepts of Thermal Analysis
Temperature
A measure of kinetic energy of molecular motion
Temperature Scales:
Newton (1701): freezing point of water 0, human body 12
Fahrenheit (1714): freezing point of water mixed with NaCl 0, human body 96, freezing point of water 32, boiling point of water 212
Celsius (1742): freezing point of water 0, boiling point of water 100
Kelvin (1848): absolute zero is the temperature at which molecular energy is a minimum and it corresponds to a temperature of -273.15°C
Some Important Temperatures
Absolute zero (precisely by definition): 0 K or −273.15 °C
Coldest measured temperature: 450 pK or –273.14999999955 °C
Water’s triple point (precisely by definition): 273.16 K or 0.01 °C
Water’s boiling point: 373.1339 K or 99.9839 °C
Incandescent lamp: ~2500 K or ~2200 °C
Melting point of tungsten: 3695 K or 3422 °C
Melting point of carbon: 3773.15 K or 3500 °C
Sun’s visible surface 5778 K or 5505 °C
Lightning bolt’s channel 28,000 K or 28,000 °C
Sun’s core 16 MK or 16M°C
Thermonuclear weapon (peak temperature) 350 MK or 350M°C
CERN’s proton vs. nucleus collisions 10 TK or 10 trillion °C
Universe 5.391×10−44 s after the Big Bang 1.417×1032 K 1.417×1032 °C
Thermogravimetric Analysis (TGA)
A technique that permits the continuous weighing of a sample as a function of temperature and/or as a function of time at a desired temperature