Zobrazeno 1 - 10 of 50 pro vyhledávání: '"Ottmar Knacke"'
1
Experimental Study of the Crystallization Pressure of Gypsum
Autor: Wigbert Gans, Ottmar Knacke, Hubert Klöcker
Publikováno v: International Journal of Materials Research. 87:98-103
Porous tablets of hemihydrate are hydrated with water or water vapor at 20°C, CaSO 4 . 1/2 H 2 0 + 3/2 H 2 O → CaSO 4 . 2 H 2 O. The tablets are under the variable pressure of a movable piston and may shrink or swell. Expansion against the pressur
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::027b6137bd1058656c3f3e3e19c04d45
https://doi.org/10.1515/ijmr-1996-870206
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4
Thermal Dissociation of CdO and CdFe2O4
Autor: Ottmar Knacke, Edwin Zimmermann
Publikováno v: Zeitschrift f�r anorganische und allgemeine Chemie. 619:1790-1792
Knudsen effusion mass spectrometry has been applied to two identical alumina cells inside a revolving molybdenum cylinder. The one cell was filled with cadmium ferrite and the other with cadmium oxide, and the ionic current intensities of Cd+ and O2+
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9f406adb15ca34d48ccd557aa10109f7
https://doi.org/10.1002/zaac.19936191027
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5
The crystallisation pressure of sodium sulphate decahydrate
Autor: Ottmar Knacke, Robert von Erdberg
Publikováno v: Berichte der Bunsengesellschaft für physikalische Chemie. 79:653-657
Anhydrous sodium sulphate undergoes volumetric expansion of app, 300% during hydration and transformation to the decahydrate. If the expansion is restricted, e.g. inside a rigid porous body the pores of which are nearly filled with anhydrite, a high
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aaffb77ea0540c815e6bd2ed8c28abff
https://doi.org/10.1002/bbpc.19750790805
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