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Tungsten and Sapphire
Tungsten Crucible for Sapphire Growth Furnace
Tungsten Crucible Cover for Crystal Growth Furnace
Tungsten Bracket for Sapphire Furnace
Tungsten Heat Shield for Crystal Furnace
Tungsten Electrode Screen for Sapphire Crystal Furnace
Tungsten Heater for Sapphire Growth Furnace
Tungsten Wire Heater for Sapphire Crystal Furnace
Tungsten Rhenium Wire for Sapphire Crystal Growth Furnace
|You're viewing: Home >>Sapphire Growth Method- Temperature Gradient Technique (TGT)
On a global and annual basis, the dynamics of the atmosphere (and the oceans) can be understood as attempting to reduce the large difference of temperature between the poles and the equator by redistributing warm and cold air and water, known as Earth's heat engine.
Differences in air temperature between different locations are critical in weather forecasting and climate. The absorption of solar light at or near the planetary surface increases the temperature gradient and may result in convection (a major process of cloud formation, often associated with precipitation). Meteorological fronts are regions where the horizontal temperature gradient may reach relatively high values, as these are boundaries between air masses with rather distinct properties.
Clearly, the temperature gradient may change substantially in time, as a result of diurnal or seasonal heating and cooling for instance. This most likely happens during an inversion. For instance, during the day the temperature at ground level may be cold while it's warmer up in the atmosphere. As the day shifts over to night the temperature might drop rapidly while at other places on the land stay warmer or cooler at the same elevation. This happens on the West Coast of the United States sometimes due to geography.
Expansion and contraction of rock, caused by temperature changes during a wildfire, through thermal stress weathering, may result in thermal shock and subsequent structure failure.( Info from Wikipedia) Sapphire growth furnace and the sapphire grow by TGT:
1. Heat Shield 2.Heater 3.Crucible 4. Electrode 5.Water Cooling Tube
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