written 6.1 years ago by | modified 3.4 years ago by |
Mumbai University > Electronics Engineering > Sem 8 > MEMS Technology
Marks: 5M
written 6.1 years ago by | modified 3.4 years ago by |
Mumbai University > Electronics Engineering > Sem 8 > MEMS Technology
Marks: 5M
written 6.0 years ago by | modified 6.0 years ago by |
TCE [Thermal co-efficient of expansion] : The co-efficient of thermal expansion is defined as the fractional increase in the length per unit rise in temperature.
Usually, TCE is specified over a temperature range because it varies depending on the temperature.
The equation below describes a linear thermal expansion
△LL=αL△T
where, △L = change in length
L = original length
αL = Linear co-efficient of thermal expansion
△T = change in temperature.
Issues related to TCE :
The TCE is often not the same in all axes. In MEMS structure the values are different X and Z plane.
TCE , it is rarely linear and should be quoted either at a specific temperature or an average over a given temperature range.
The variation in TCE with temperature is only a fairly smooth function if the material is undergoing no phase transitions.
written 6.0 years ago by |
TCE [Thermal co-efficient of expansion] : The co-efficient of thermal expansion is defined as the fractional increase in the length per unit rise in temperature.
Usually, TCE is specified over a temperature range because it varies depending on the temperature.
The equation below describes a linear thermal expansion
△LL=αL△T
where, △L = change in length
L = original length
αL = Linear co-efficient of thermal expansion
△T = change in temperature.
Issues related to TCE :
The TCE is often not the same in all axes. In MEMS structure the values are different X and Z plane.
TCE , it is rarely linear and should be quoted either at a specific temperature or an average over a given temperature range.
The variation in TCE with temperature is only a fairly smooth function if the material is undergoing no phase transitions.
written 3.4 years ago by |
The chemical compound trichloroethylene is a halocarbon commonly used as an industrial solvent. It is a clear, colourless non-flammable liquid with a chloroform-like[1] sweet smell. It should not be confused with the similar 1,1,1-trichloroethane, which is commonly known as chlorothene.