Flame-Fusion Growth of Rutile Single Crystal

Xiao Guo Bi; Xu Dong Liu; Wei Niu

doi:10.4028/www.scientific.net/AMR.535-537.2571

Paper Titles

Effect of BPR on the Preparation of Nb-Base Powder via Ball Milling
p.2554

The Influence of the Viscosity of Edible Ink to Ink-Jet Printing Drop State
p.2559

Study on Preparation and Hydrophobicity of MTES Derived Silica Sol and Gel
p.2563

Synthesis of Ba₂B₅O₉Cl Whiskers via Flux Method
p.2567

Flame-Fusion Growth of Rutile Single Crystal
p.2571

Effects of Supercritical Carbon Dioxide on Interfacial Properties of Carbon Fiber
p.2577

Synergistic Effects of Colour Protective Agent and Modified Atmosphere Packaging on the Preservation of Litchi (Litchi chinensis Sonn.) Fruit
p.2585

Determination of Mineral Elements in Fermented Liquid with Temperature-Controlled Wet Digestion and Flame Atomic Absorption Spectrometry
p.2591

OD-Characterization of the Symmetric Group S₄₉
p.2596

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 535-537Flame-Fusion Growth of Rutile Single Crystal

Flame-Fusion Growth of Rutile Single Crystal

Abstract:

Single crystal of Rutile has been grown successfully by the flame fusion method by using high purity (4N5) ultrafine titania powder as starting material. The effects of growth atmosphere, growth rate and temperature gradient in the chamber on crystal growing were investigated and the specific growth conditions have been defined. The annealing of the as-grown crystals was performed in the oxygen and in the air respectively. It was shown that growth atmosphere where the oxygen partial pressure is higher than that of the oxygen decomposing pressure at the liquid-solid interface is a necessary condition for growing perfect crystals. In addition to reducing thermal stresses, the more important role of annealing is to eliminate oxygen vacancies by oxidization reaction. The annealing time can be considerably shortened in an oxygen atmosphere as compared to in the air and the grown crystal has more perfect structure.