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1. Spinel containing refractories are widely used in metallurgical industry.

2. Magnesiaalumina spinel, as an important catalytic material , is applicable both as catalyst and as catalyst support.

3. The phonon dispersion relations of magnesium aluminium spinel MgAl 2 O 4 are calculated by using frozen phonon method.

4. The synthesis methods of magnesia - alumina spinel are electro - fusion and sintering process.

5. This is a blue colour stain with a spinel structure, widely used in glazes.

6. The results show that the prepared spinel ferrite have high saturation magnetization in all the micro zone with the same stoichiometric proportion.

7. There are a lot of spinel - lherzolite xenoliths in the Taiyangshan Mesozoic basalt in Ningyuan, Hunan province.

8. Preparation of magnesia alumina spinel and its application in catalytic reaction were reviewed in this paper.

9. Mg-Al spinel ladle brick in Xining Special Steel for long-term use, such as steel, sliding gate series in the Benxi steel mill and other good results.

10. Spinel exhibits a lower thermal expansion coefficient than conventional glass faceplate.

11. The particles of the spinel oxides prepared in microwave field have very regular octahedron or polyhedron crystal morphology with well crystallization.

12. However, the capacity of spinel manganic acid lithium fades rapidly in the charge - discharge cycle process.

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13. The fractal structure factors (FSF ) of spinel from ultramafic xenolith, harzburgite, dunite and chromite have been calculated using a new method presented by Shen (1993).

14. In this dissertation, two methods are adopted to prepare spinel manganic acid lithium.

15. The electrovalent bond weakens and the covalent bond strengthen between manganese and oxygen due to ion polarization effect, which makes the spinel structure more stable.

16. A cathode - ray - tube ( CRT ) faceplate made of transparent spinel ( MgAl 2 O 4 ) is developed.

17. The exoplanet's atmosphere condenses out minerals such as enstatite, corundum, spinel, and wollastonite.

18. This paper introduces the application of pouring material of high - alumina - spinel on ladle lining for continuous casting.

19. The properties of some refractories contaning synthetic magnesia - alumina spinel and theirapplieations are discussed in this paper.

20. The mechanics properties and microstructure of self - flow alumina - spinel castable have been investigated.

21. They consist mainly of olivine, orthopyroxene and minor clinopyroxene, spinel and phlogopite . Some olivines still remain kink band.

22. The effect of different doping elements on the electrochemical performance of spinel LiMn _ 2 O _ 4 was reviewed.

23. This paper introduces the characteristics, synthetic methods and domestic applications of spinel refractory.

24. The deformation of olivine and pyroxene in the rock is the recrystallized process from coarse to fine grain, the spinel has obvious dissolution, migration and reprecipitation.

25. Preparation techniques, products propertyes and applications of magnesium aluminum spinel powders have been viewed.

26. The results show that zinc aluminate, through the method of sol - gel , has the spinel structure, sma.

27. The octahedral site preference energy for coordination center cations and spinel mineral structures can be used of calculation for distributing coeff...

28. The main materials are high quality bauxite, fused corundum and high - purity spinel etc.

29. And the test shows that the using condition of modified zirconium spinel brick is more bad than direct-bonded magnesia brick but as for chrome periclase-spinel compound brick (LYC) it is better.

30. Resistance to slag relates to the content of magnesia powder and spinel.