Melt, study

Because of the subtle effects on the loading wave profile, many of the melting studies have utilized physical property measurements such as resistivity or optical opacity. Perhaps more direct are the release-wave speed... 

TEPP Melting studies in water shows randomly coiled... 

Some Complex Fluoride Melts Studied Mass Spectrometrically... 

Melting, defined as the equilibrium transition between crystalline unit liquid states, is of large concern in the development ol the physical and materials sciences. To date, some of ihe purest cry slats of silicon, diamond, and other technologically imporlani materials have been produced from melts. Studies of melts also are of significance in understanding (he interiors of... 

L. A. Archer and G. G. Fuller, Segment orientation in a quiescent block copolymer melts studied by Raman scattering, Macromolecules, 27,4359,1994. 

H. T. Chan and D. A. DuFresne, Kneading Block Melting Study, SPE ANTEC Tech. Papers, 53, 302 (1995). 

Off-axis and dual laser PLD for droplet reduction Dynamic melt studies of the target surface, time synchronized irradiation of the target with CO2 and KrF lasers leads to particulate free ZnO films [133,134]... 

The thermodynamics of corrosive alkali salt-oxide interaction is not well established. In an assessment of research needs for materials in coal conversion, the need for carbonate-silicate melt studies, including activity and phase equilibrium measurements, was stressed (31 ). The lack of thermodynamic data for fused salts, and their reactions with oxides and alloys leading to models of hot corrosion, was also indicated. 

Green D. H. (1973) Experimental melting studies on a model upper mantle composition at high pressure under water-saturated and water-undersaturated conditions. Earth Planet. Sci Lett. 19, 37-53. 

The constant heat capacity, 17.59 cal k mol extrapolated above and below the experimental range. A lower value of 16.7 cal K mol was derived by Dworkin (2) from enthalpy data (1050-1110 K) obtained in an enthalpy of melting study. The entropy of the liquid is calculated in a manner analogous to that used for enthalpy of formation. 

Crystallization of ash melts The results of the crystallization of the three ash melts studied are listed in Table V. The only phase observed to precipitate for the western type ashes was anorthite (CaO.A 1203.23102) despite lengthy treatment. The eastern type ash showed different behaviour with mullite (3A1203.23102) as the... 

Figure 1. Pseudoternary system YBC-BaCu02-CuO showing compositions along constant Ba/Y lines used in melting studies in Au crucibles at 950°C in air. Composition a was used in all crystal growth runs. Compositions are given in terms of mole percent of the binary oxides BaO, CuO and YOj 5.

Phase II was used for the initial state in the AN melting studies described in Sec. 4.1. Based on NPT MD simulations and using a potential of the form given in Eq. (4), it was found that nitrate ions become rotationally unhindered prior to the melting of AN.[142] This provides some evidence that orientational aspects of the solid-state phase II phase I... 

The reference half-element is an electrode immersed in the solution of the potential-defining ion in the pure melt studied. For this purpose metals immersed in a solution of the corresponding salts of a definite concentration are often used a possible variant is the use of a similar oxygen electrode in the solution, with known and constant concentration of oxide ions (concentration cells). The quality of such electrodes is determined by their ability to maintain... 

K2Cr207 in KNO3 is put down at a constant rate into a melt containing a Lux base. The e.m.f. values of the potentiometric cell are registered and printed using a recorder. This method may be employed to analyse ionic melts basicity in industrial molten systems since it allows one to estimate the concentration of bases in the melts studied, to an accuracy of the order of 3.5%. However, the thermodynamic parameters cannot be estimated on the basis of the e.m.f.-time plots obtained, since the e.m.f. recorded is not referred to the equilibrium state. 

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