The glass–liquid transition, or glass transition, is the gradual and reversible transition in amorphous materials (or in amorphous regions within semicrystalline...
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other related fields like biology, a phase transition (or phase change) is the physical process of transition between one state of a medium and another...
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discontinuous through the glass transition range. The glass transition may be described as analogous to a second-order phase transition where the intensive...
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Polymer (section Glass transition)
first-order phase transitions, the glass transition is not. The glass transition shares features of second-order phase transitions (such as discontinuity...
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Look up transition, transitate, transitional, transitionally, or transitions in Wiktionary, the free dictionary. Transition or transitional may refer...
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Poly(methyl methacrylate) (redirect from Plexi-glass)
PMMA is thus an organic glass at room temperature; i.e., it is below its Tg. The forming temperature starts at the glass transition temperature and goes...
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approach can be used to locate the glass transition temperature of the material, as well as to identify transitions corresponding to other molecular motions...
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Prince Rupert's drop (redirect from Glass drop)
known as Dutch tears or Batavian tears) are toughened glass beads created by dripping molten glass into cold water, which causes it to solidify into a tadpole-shaped...
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Soda–lime glass, also called soda–lime–silica glass, is the transparent glass, used for windowpanes and glass containers (bottles and jars) for beverages...
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glasses from other magnetic systems. Above the spin glass transition temperature, Tc, the spin glass exhibits typical magnetic behaviour (such as paramagnetism)...
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Uranium glass is glass which has had uranium, usually in oxide diuranate form, added to a glass mix before melting for colouration. The proportion usually...
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Welding (redirect from Glass welding)
plastics have a melting range, called the glass transition. When heating the solid material past the glass-transition temperature (Tg) into this range, it...
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solid. The change from supercooled liquid to glass occurs at a temperature called the glass transition temperature, which depends on both cooling rate...
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Photochromic lens (redirect from Transition lenses)
Photochromic lenses may be made of polycarbonate, or another plastic. Glass lenses use visible light to darken. They are principally used in glasses...
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or released during such transitions. DSC may also be used to observe more subtle physical changes, such as glass transitions. It is widely used in industrial...
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is a simple empirical formula that relates molecular weight to the glass transition temperature of a polymer system. The equation was first proposed in...
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these terms refer specifically to amorphous materials that undergo a glass transition. Examples of amorphous solids include glasses, metallic glasses, and...
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Cryoprotectant (section Glass transition temperature)
not be toxic to cells. Some cryoprotectants function by lowering the glass transition temperature of a solution or of a material. In this way, the cryoprotectant...
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Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having...
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but typically decompose and do not reform upon cooling. Above its glass transition temperature and below its melting point, the physical properties of...
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furnace that heats it well above its transition temperature of 564 °C (1,047 °F) to around 620 °C (1,148 °F). The glass is then rapidly cooled with forced...
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Vitrimers (section Glass and glass former)
constant load. Thermoplastics can be deformed reversibly above their glass-transition temperature or their crystalline melting point and be processed by...
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Amorphous metal (redirect from Bulk metallic glass)
demonstrated glass transition and a super cooled liquid region. Between 1988 and 1992, more studies found more glass-type alloys with glass transition and a...
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Glass production involves two main methods – the float glass process that produces sheet glass, and glassblowing that produces bottles and other containers...
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Arrhenius equation (section Transition state theory)
There are deviations from the Arrhenius law during the glass transition in all classes of glass-forming matter. The Arrhenius law predicts that the motion...
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polymer to semi-crystalline and highly crystalline polymer with a glass transition 60–65 °C, a melting temperature 130-180 °C, and a Young's modulus 2...
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(C8H8)x·(C4H6)y·(C3H3N)z ) is a common thermoplastic polymer. Its glass transition temperature is approximately 105 °C (221 °F). ABS is amorphous and...
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Vitrification (category Phase transitions)
then cooling the liquid, often rapidly, so that it passes through the glass transition to form a glassy solid. Certain chemical reactions also result in glasses...
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state at room temperature but flows if heated above about 100 °C, its glass transition temperature. It becomes rigid again when cooled. This temperature behaviour...
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John W. Cahn (section Glass transition)
evidence indicates that this phase forms by a first-order transition. TEM images show that the q-glass nucleates from the melt as discrete particles, which...
15 KB (1,586 words) - 14:19, 10 August 2024