On the transformation mechanism of K2Ti4O9 to TiO2(B) and formation of microvoids L. Reine Wallenberg, Mehri Sanati and Arne AnderssonMicrosc. Microanal. Microstruct., 1 5-6 (1990) 357-364DOI: https://doi.org/10.1051/mmm:0199000105-6035700