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Dive into the research topics where G. Krabbes is active.

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Featured researches published by G. Krabbes.


Journal of Crystal Growth | 1987

Chemical vapour transport of stoichiometric and nonstoichiometric rutile using TeCl4, SeCl4 or CCl4

G. Krabbes; Do Voung Hoanh; Ngyen Van Hai; H. Oppermann; S. Velichkow; P. Peshev

Abstract The chemical vapour transport of rutile TiO 2-δ using TeCl 4 , SeCl 4 was investigated with respect to the influence on deviations from stoichiometry. Using TeCl 4 a characteristic inversion of transport direction occurs. Only CCl 4 is appropriate to transport TiO 2-δ at its lower phase boundary. The results of the thermodynamic analyses carried out with an enhanced transport model are confirmed by experiments.


Acta Physica Hungarica | 1987

CTR for growing crystals of transition metal silicides

G. Krabbes; M. Ritschel; Do. V. Hoanh

The transport behaviour of the Ti- and Mo-silicides was studied with halogens (Cl2, I2, HCl) as transport agent. The experimental behaviour agrees well with the calculated results. Monocrystals of Ti-silicides were obtained.


Crystal Research and Technology | 1990

On the chemical vapour transport of nickel titanate with selenium tetrachloride

W. Bieger; W. Piekarczyk; G. Krabbes; G. Stöver; Ngyen van Hai


Zeitschrift für anorganische und allgemeine Chemie | 1989

Crystal growth of chromium silicides by chemical vapour transport with halogens. 1. Growth of Chromium Disilicide Single Crystals

R. Krausze; M. Khristov; P. Peshev; G. Krabbes


Zeitschrift für anorganische und allgemeine Chemie | 1990

Crystal Growth of Chromium Silicides by chemical vapour transport with halogens. 2. Growth of the Cr‐rich silicide crystals

R. Krausze; M. Khristov; P. Peshev; G. Krabbes


Crystal Research and Technology | 1991

Estimation of the Chemical Transport Behaviour of Transition Metal Silicides MeSix (Me = Cr, Ti, V, Mo, Fe, Mn) with X2 (X = Cl, Br, I)

R. Krausze; G. Krabbes; M. Khristov


Zeitschrift für anorganische und allgemeine Chemie | 1988

Heterogene Gleichgewichte und chemische Transportreaktionen im System Ti-O-C-Cl

G. Krabbes; Do Vuong Hoanh


Zeitschrift für anorganische und allgemeine Chemie | 1990

Crystal growth of chromium silicides by chemical vapour transport with halogens. II, Growth of the Cr-rich sillice crystals

R. Krausze; M. Khristov; P. Peshev; G. Krabbes


ChemInform | 1988

The Isothermal Section at 1273 K in the Ti-Si-O System

Do Vuong Hoanh Do Vuong Hoanh; G. Krabbes; R. Krausze


ChemInform | 1988

Heterogeneous Equilibria and Chemical Vapor Transport in the System Ti-O-C-Cl.

G. Krabbes; Do Vuong Hoanh Do Vuong Hoanh

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P. Peshev

Bulgarian Academy of Sciences

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S. Velichkow

Bulgarian Academy of Sciences

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W. Piekarczyk

Polish Academy of Sciences

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