Johann Ponahlo

Phase Characterization of Precipitated Zirconia

Stoyan Gutzov, Johann Ponahlo, Christian L. Lengauer et al. · Journal of the American Ceramic Society · 1994 · 49 citations

Materials Science, Inorganic Chemistry, Engineering +12

GE POL Diamonds: Before and After

Christopher P. Smith, George Bosshart, Johann Ponahlo et al. · Gems & Gemology · 2000 · 49 citations · Full text

Art History, Business History, Comparative Analysis +2

SOME ASPECTS OF DEGRADATION PHENOMENA OF PAPER CAUSED BY GREEN COPPER-CONTAINING PIGMENTS

Gerhard Banik, Johann Ponahlo · The Paper Conservator · 1982 · 31 citations

Engineering, Green Chemistry, Degradation Reaction +17

57Fe Mössbauer spectroscopy, X-ray single-crystal diffractometry, and electronic structure calculations on natural alexandrite

Sven‐Ulf Weber, Michael Grodzicki, Werner Lottermoser et al. · Physics and Chemistry of Minerals · 2007 · 23 citations

Materials Science, Inorganic Chemistry, X-ray Crystallography +9

Analytical investigations of the problem of ?Kupferfra\? in illuminated manuscripts

Gerhard Banik, H. Stachelberger, Franz Mairinger et al. · Microchimica Acta · 1981 · 22 citations

Illuminated Manuscripts, Art History, History Of Science +3