Abstract
The temperature dependence of the stability of various zinc borates has been investigated in the range 600 to 900°C using X-ray powder diffraction techniques. At low temperatures, 640 to 700°C, the only zinc borates detected areα-3ZnO.B2O3 and ZnO.2B2O3; super-position of these patterns accounts for the pattern ofα-ZnO.B2O3 reported previously. At temperatures of 71°C and above, ZnO.2B2O3 decomposes to 4ZnO.3B2O3 and boric oxide. However, this decomposition is very sluggish and ZnO.2B2O3 may be detected at temperatures as high as 900°C.
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Whitaker, A. Temperature dependence of the stability of zinc borates. J Mater Sci 7, 189–193 (1972). https://doi.org/10.1007/BF00554180
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DOI: https://doi.org/10.1007/BF00554180