glass transition temperature

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glass transition temperature

[¦glas ‚tran′zish·ən ‚tem·prə·chər]
(physical chemistry)
The temperature at which a liquid changes to an amorphous or glassy solid.
References in periodicals archive ?
ForTii Ace WX51-FC is a 30% glass-reinforced PPA based on nylon 4T chemistry with a high glass-transition temperature of 160 C/320 F.
He says the resin has a glass-transition temperature 160[degrees]C, which is higher than other PPAs, including existing ForTii grades, and at least 80[degrees]C higher than PA66.
Ultem EXSP0023 features a glass-transition temperature (Tg) of 245[degrees]C, has a dielectric strength of 4,700 V/mil and good tear resistance.
It produces a glass-transition temperature of more than 120 [degrees] C, and high bond strength to glass ceramic, metals and most plastics--allowing it to pass the most stringent specifications for both single- and multimode terminations.
The glass-transition temperature may be determined by taking the middle of the change in baseline (half-height method).
With a glass-transition temperature of 450 degrees F, PPSF has the highest operating temperature and toughness of any rapid prototyping material except metals," he said.
Meanwhile, its modulus is 50% greater at temperatures below the glass-transition temperature (Tg) of PEEK (302 F).
The tan[Delta] curves were highly reproducible, and the maximum error in the glass-transition temperature was estimated to be 1-2 [degrees] C.
The new material is thermomechanically stable with an effective glass-transition temperature (Tge) of over 400 C.
Amorphous PC exhibits only one transition temperature, known as the glass-transition temperature (Tg).
Since the sperm are held for extended times close to -130 degrees C, the glass-transition temperature of water, this places the sperm at risk of undergoing very slight deterioration with time.