SOLID SOLUTION FORMATION BETWEEN AMMONIUM NITRATE AND POTASSIUM NITRATE

1948 ◽  
Vol 26b (6) ◽  
pp. 499-502 ◽  
Author(s):  
John Whetstone
Keyword(s):  
Solid Solution ◽  
Aqueous Solution ◽  
Transition Temperature ◽  
Ammonium Nitrate ◽  
Potassium Nitrate ◽  
Mixed Crystals ◽  
Solid Solution Formation ◽  
X Ray ◽  
Solution Formation

X-ray investigations by means of powder photographs show that solid solution formation between potassium nitrate and ammonium nitrate in simple admixture after grinding together may take place, and is considerably accelerated when the temperature is raised from ordinary temperatures to above 40 °C., at which NH4NO3 III is stable (transition temperature 32 °C.). The preparation of homogeneous mixed crystals of ammonium nitrate and potassium nitrate by co-crystallization of the salts from aqueous solution is described.

THE EFFECT OF A FOREIGN SUBSTANCE ON THE TRANSITION: NH4NO3IVNH4NO3 III

1946 ◽  
Vol 24b (4) ◽  
pp. 93-108 ◽  
Author(s):  
Alan N. Campbell ◽  
A. Jean R. Campbell
Keyword(s):  
Solid Solution ◽  
Aqueous Solution ◽  
Ammonium Nitrate ◽  
Solid Solutions ◽  
Potassium Nitrate ◽  
Mixed Aqueous Solution ◽  
Foreign Substance

It is shown that the above transition can be repressed (metastably) by using in place of pure ammonium nitrate a solid solution of potassium nitrate in ammonium nitrate. With such a solid solution containing 8 to 10% potassium nitrate, the temperature of the transition III → IV is depressed to about −20 °C. Such solid solutions can be prepared either by fusing the components together or by crystallizing from a mixed aqueous solution.

Otavite-calcite solid-solution formation at the calcite-water interface studied in situ by synchrotron X-ray scattering

1997 ◽  
Vol 61 (7) ◽  
pp. 1467-1474 ◽  
Author(s):  
Ronald P. Chiarello ◽  
Neil C. Sturchio ◽  
John D. Grace ◽  
Phillip Geissbuhler ◽  
Larry B. Sorensen ◽  
...  
Keyword(s):  
Solid Solution ◽  
Water Interface ◽  
Solid Solution Formation ◽  
X Ray ◽  
X Ray Scattering ◽  
Solution Formation ◽  
Ray Scattering

AEM investigation of ZrO2 solid solution formation in ZrO2/mullite composites

1984 ◽  
Vol 42 ◽  
pp. 408-409
Author(s):  
T. R. Dinger
Keyword(s):  
Solid Solution ◽  
Ion Beam ◽  
Analytical Electron Microscopy ◽  
Transformation Toughening ◽  
Solid Solution Formation ◽  
Solution Formation ◽  
Propagating Crack ◽  
Analytical Electron ◽  
Microcrack Toughening ◽  
Made In

Zirconia (ZrO2) is often added to ceramic compacts to increase their toughness. The mechanisms by which this toughness increase occurs are generally accepted to be those of transformation toughening and microcracking. The mechanism of transformation toughening is based on the presence of metastable tetragonal ZrO2 which transforms to the monoclinic allotrope when stressed by a propagating crack. The decrease in volume which accompanies this transformation effectively relieves the applied stress at the crack tip and toughens the material; microcrack toughening arises from the deflection of a propagating crack around sharply angular inclusions.These mechanisms, however, do not explain the toughness increases associated with the class of composites investigated here. Analytical electron microscopy (AEM) has been used to determine whether solid solution effects could be the cause of this increased toughness. Specimens of a mullite (3Al2O3·2SiO2) + 15 vol. % ZrO2 were prepared by the usual technique of mechanical thinning followed by ion beam milling. All observations were made in a Philips EM400 TEM/STEM microscope fitted with EDXS and EELS spectrometers.

SOLID SOLUTION FORMATION DURING LIQUID PHASE SINTERING

1986 ◽  
Vol 47 (C1) ◽  
pp. C1-441-C1-445
Author(s):  
E. KOSTIĆ ◽  
S. J. KISS ◽  
D. CEROVIĆ
Keyword(s):  
Solid Solution ◽  
Liquid Phase ◽  
Liquid Phase Sintering ◽  
Solid Solution Formation ◽  
Solution Formation

Structural basis of solid solution formation during chiral resolution

2000 ◽  
Vol 11 (20) ◽  
pp. 4061-4070 ◽  
Author(s):  
Orsolya Barabás ◽  
Dóra K Menyhárd ◽  
Zsolt Böcskei ◽  
Kálmán Simon ◽  
Ilona Kiss-Ajzert ◽  
...  
Keyword(s):  
Solid Solution ◽  
Chiral Resolution ◽  
Structural Basis ◽  
Solid Solution Formation ◽  
Solution Formation
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