• Thumbnail for Glass transition
    The glass–liquid transition, or glass transition, is the gradual and reversible transition in amorphous materials (or in amorphous regions within semicrystalline...
    58 KB (6,792 words) - 08:56, 30 September 2024
  • Thumbnail for Phase transition
    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...
    53 KB (6,586 words) - 01:51, 4 November 2024
  • Thumbnail for Glass
    discontinuous through the glass transition range. The glass transition may be described as analogous to a second-order phase transition where the intensive...
    89 KB (9,116 words) - 14:47, 26 November 2024
  • Thumbnail for Polymer
    first-order phase transitions, the glass transition is not. The glass transition shares features of second-order phase transitions (such as discontinuity...
    73 KB (7,844 words) - 19:37, 21 September 2024
  • Look up transition, transitate, transitional, transitionally, or transitions in Wiktionary, the free dictionary. Transition or transitional may refer...
    8 KB (960 words) - 00:51, 22 November 2024
  • Thumbnail for Poly(methyl methacrylate)
    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...
    48 KB (5,092 words) - 03:05, 22 December 2024
  • approach can be used to locate the glass transition temperature of the material, as well as to identify transitions corresponding to other molecular motions...
    20 KB (2,803 words) - 21:50, 4 December 2024
  • Thumbnail for Prince Rupert's 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...
    20 KB (2,325 words) - 23:28, 17 December 2024
  • Thumbnail for Soda–lime glass
    Soda–lime glass, also called soda–lime–silica glass, is the transparent glass, used for windowpanes and glass containers (bottles and jars) for beverages...
    12 KB (993 words) - 21:35, 12 December 2024
  • Thumbnail for Spin glass
    glasses from other magnetic systems. Above the spin glass transition temperature, Tc, the spin glass exhibits typical magnetic behaviour (such as paramagnetism)...
    36 KB (4,912 words) - 19:27, 10 December 2024
  • Thumbnail for Uranium glass
    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...
    14 KB (1,485 words) - 03:33, 23 December 2024
  • Thumbnail for Welding
    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...
    68 KB (8,974 words) - 23:30, 17 December 2024
  • Thumbnail for Volcanic glass
    solid. The change from supercooled liquid to glass occurs at a temperature called the glass transition temperature, which depends on both cooling rate...
    6 KB (716 words) - 17:52, 17 July 2023
  • Thumbnail for Photochromic lens
    Photochromic lenses may be made of polycarbonate, or another plastic. Glass lenses use visible light to darken. They are principally used in glasses...
    6 KB (712 words) - 20:14, 2 December 2024
  • Thumbnail for Differential scanning calorimetry
    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...
    29 KB (3,627 words) - 01:00, 11 December 2024
  • is a simple empirical formula that relates molecular weight to the glass transition temperature of a polymer system. The equation was first proposed in...
    15 KB (2,080 words) - 18:28, 6 November 2024
  • these terms refer specifically to amorphous materials that undergo a glass transition. Examples of amorphous solids include glasses, metallic glasses, and...
    27 KB (2,917 words) - 15:29, 18 November 2024
  • 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...
    9 KB (978 words) - 11:56, 4 April 2024
  • Thumbnail for Borosilicate glass
    Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having...
    30 KB (3,658 words) - 22:52, 26 November 2024
  • Thumbnail for Thermoplastic
    but typically decompose and do not reform upon cooling. Above its glass transition temperature and below its melting point, the physical properties of...
    18 KB (2,394 words) - 13:30, 13 December 2024
  • Thumbnail for Tempered glass
    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...
    20 KB (2,586 words) - 10:47, 9 December 2024
  • constant load. Thermoplastics can be deformed reversibly above their glass-transition temperature or their crystalline melting point and be processed by...
    17 KB (1,962 words) - 19:26, 1 July 2024
  • Thumbnail for Amorphous metal
    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...
    44 KB (5,048 words) - 00:11, 22 December 2024
  • Glass production involves two main methods – the float glass process that produces sheet glass, and glassblowing that produces bottles and other containers...
    24 KB (3,241 words) - 18:37, 4 December 2024
  • 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...
    21 KB (2,776 words) - 17:54, 26 November 2024
  • Thumbnail for Polylactic acid
    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...
    45 KB (5,197 words) - 19:49, 25 November 2024
  • Thumbnail for Acrylonitrile butadiene styrene
    (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...
    23 KB (2,183 words) - 23:33, 18 December 2024
  • 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...
    15 KB (1,586 words) - 14:55, 16 October 2024
  • Thumbnail for Polystyrene
    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...
    82 KB (8,579 words) - 01:22, 11 November 2024
  • Thumbnail for John W. Cahn
    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