* Metastable quasicrystals prepared by melt spinning, and

Spandex fibers are produced in four different ways: melt extrusion, reaction spinning, solution dry spinning, and solution wet spinning.

For instance, amorphous metal wires have been produced by sputtering molten metal onto a spinning metal disk ( melt spinning ).

The polymer is extruded by melt spinning to produce filament fibers.

However, polyglycolide is soluble in highly fluorinated solvents like hexafluoroisopropanol ( HFIP ) and hexafluoroacetone sesquihydrate, that can be used to prepare solutions of the high MW polymer for melt spinning and film preparation.

Polylactic acid can be processed like most thermoplastics into fiber ( for example using conventional melt spinning processes ) and film.

If the primary cooling loop were to be somehow suddenly stopped, or if the control rods were suddenly removed, the metal fuel can melt as accidentally demonstrated in EBR-I, however the melting fuel is then extruded up the steel fuel cladding tubes and out of the active core region leading to permanent reactor shutdown and no further fission heat generation or fuel melting.

A polymer's architecture affects many of its physical properties including, but not limited to, solution viscosity, melt viscosity, solubility in various solvents, glass transition temperature and the size of individual polymer coils in solution.

Impact resistance also tends to increase with chain length, as does the viscosity, or resistance to flow, of the polymer in its melt state.

Chain length is related to melt viscosity roughly as 1: 10 < sup > 3. 2 </ sup >, so that a tenfold increase in polymer chain length results in a viscosity increase of over 1000 times.

In order for this to be established, the polymer needs to be heated in the presence of the plasticizer, first above the Tg of the polymer and then into a melt state.

The L, L-lactide enantiomer is isolated by distillation and polymerized in the melt to make a crystallizable polymer, which has use in many applications including textiles and apparel, cutlery, and food packaging.

After polymerization, the acidic catalyst must be deactivated and the polymer stabilized by melt or solution hydrolysis in order to remove the unstable end groups.

Stable polymer is melt compounded, adding thermal and oxidative stabilizers and optionally lubricants and miscellaneous fillers.

Spray drying serves as a microencapsulation technique when an active material is dissolved or suspended in a melt or polymer solution and becomes trapped in the dried particle.

It is performed after the material has been " spun " into filaments ; by extruding the polymer melt through pores of a spinneret.

Thereafter, polycondensation is done in the melt or as a solution, where short oligomeric units are combined to give a high molecular weight polymer strand.

Even higher molecular weights can be attained by carefully crystallizing the crude polymer from the melt.

If the mold spends too little time in the oven, the polymer melt may be incomplete.

The polymer grains will not have time to fully melt and coalesce on the mold wall, resulting in large bubbles in the polymer.

While amber is not actually named, it is called the concreti maris purgamentum, " the leavings of the frozen sea " after the spring melt.

As the ice melts, the melt water provides stability and the critical depth is well below the mixing depth, which allows for a positive net primary production.

Since many scientific applications require incubation at temperatures close to human body temperature ( 37 ° C ), agar is more appropriate than other solidifying agents that melt at this temperature, such as gelatin.

It is one of only two elements on the periodic table that are known to be liquids at room temperature ( mercury is the other, although caesium, gallium, and rubidium melt just above room temperature ).

The situation is made worse by road salt spread in the tunnel to melt ice during freezing weather, or brought in by vehicles passing through.

In all but the smallest impacts this increase in temperature is sufficient to melt the impactor, and in larger impacts to vaporize most of it and to melt large volumes of the target.

In simple craters, the original excavation cavity is overlain by a lens of collapse breccia, ejecta and melt rock, and a portion of the central crater floor may sometimes be flat.

The ideal quality of the original Somerset Cheddar was described by Joseph Harding in 1864 as " close and firm in texture, yet mellow in character or quality ; it is rich with a tendency to melt in the mouth, the flavour full and fine, approaching to that of a hazelnut ".

Another type of loaded die is hollow with a small weight and a semi-solid substance inside whose melting point is just lower than the temperature of the human body, allowing the cheater to change the loading of the die by applying body heat, causing the semi-solid to melt and the weight to drift down, making the chosen opposite face more likely to land up.

A double boiler, also known as a bain-marie, is a stove top apparatus used to cook delicate sauces such as beurre blanc, to melt chocolate without burning or seizing, or cook any other thick liquid or porridge that would normally burn if not stirred constantly.

There is concern about sea level rise caused by ice loss ( melt and glaciers falling into the sea ) on Greenland.

When a rock crystallizes from melt ( magma and / or lava ), it is an igneous rock.

Glass homogeneity is achieved by homogenizing the raw materials mixture ( glass batch ), by stirring the melt, and by crushing and re-melting the first melt.

The viscosity decrease of lead glass melt is very significant ( roughly 100 times in comparison with soda glasses ); this allows easier removal of bubbles and working at lower temperatures, hence its frequent use as an additive in vitreous enamels and glass solders.

Yet there is a nucleation barrier, which implies an interfacial discontinuity ( or internal surface ) between the glass and the melt.

In physics, the standard definition of a glass ( or vitreous solid ) is a solid formed by rapid melt quenching.

The limit is the point at which the powder gas temperature and pressure starts to melt the base of the bullet, and leave a thin coating of molten and re-solidified lead in the bore of the gun — a process called leading the bore.

The Ice Hotel in Jukkasjärvi, Sweden, and the Hotel de Glace in Duschenay, Canada, melt every spring and are rebuilt each winter ; the Mammut Snow Hotel in Finland is located within the walls of the Kemi snow castle ; and the Lainio Snow Hotel is part of a snow village near Ylläs, Finland.

Hashish may be solid or resinous depending on the preparation ; pressed hashish is usually solid, whereas water-purified hashish — often called " bubble melt hash "— is often a paste-like substance with varying hardness and pliability, its color most commonly light to dark brown but varying toward green, yellow, black or red.

The inside wall of the tokamak must be cooled because these neutrons yield enough energy to melt the walls of the reactor.

The abundances of the Lanthanide or rare earth elements ( REE ) can be a useful diagnostic tool to help explain the history of mineral crystallisation as the melt cooled.

The salt water is cooled by the ice, and the action of the salt on the ice causes it to ( partially ) melt, absorbing latent heat and bringing the mixture below the freezing point of pure water.

As the label and ribbon are driven beneath the printhead together, tiny pixels across the width of the printhead are heated and cooled so as to melt the " ink " off the polyester film and onto the label.

Hailstones melt and raindrops evaporate — this is an endothermic process that demands a lot of energy ( in the form of latent heat ) so the air is cooled.

It is possible to date the differentiation of the precursor melt which then cooled and crystallized into the different types of rocks.

The crater's floor contains cracks that formed as the pool of impact melt cooled and shrank.

Generally, if the melt is cooled slowly, nucleation of new crystals will be less than at large undercooling.