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Determination of total titanium in titanium metal and titanium tetrachloride
BUNSEKI KAGAKU, 1961 金属チタンおよび四塩化チタン中の全チタンの定量法につき,簡易化と迅速化の見地から容量法を詳細に研究し,つぎの諸方法を確立した.金属チタンは試料をフッ化水素酸と硫酸にとかし,ホウ酸を加えて液状亜鉛アマルガムで還元する.のち四塩化炭素を加えて液状亜鉛アマルガムを分離し,還元液を硫酸第二鉄アンモニウム溶液で滴定し全チタンを求める四塩化チタンは試料を注射針付き注射器で塩酸に注入溶解させる.のち試料がバナジウムを含まない場合は金属チタンと同様に還元,滴定する.またバナジウム含有の場合は塩酸溶液に硫酸と過酸化水素水を加え硫酸白煙ののち液状亜鉛アマルガム還元,過マンガン酸カリウム滴定を行ない別に求めたバナジウム含量により補正を行なう.分析精度を変異係数(σ%)で示せば金属チタンで約0.1%,四塩化チタンで約0 ...
Nakaaki Oda, Masaji Kubo
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On the Charge State of Titanium in Titanium Dioxide [PDF]
The Journal of Physical Chemistry Letters, 2017 The oxidation state of titanium in titanium dioxide is commonly assumed to be +4. This assignment is based on the ionic approximation and is used ubiquitously to rationalize phenomena observed with TiO2. It implies a charge state +4 and that no further oxidation of the metal center is possible.
Daniel Koch, Sergei Manzhos
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Mineralogical Characteristics of Baima Vanadium Titanomagnetite during Magnetic Separation Upgrading
Separations, 2023 The Baima vanadium titanomagnetite deposit, located in the Panzhihua-Xichang (Panxi) metallogenic belt in China, is one of the super-large deposits in the region.
Xiang Zhong +5 more
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Production of spherical titanium alloy powders used in additive manufacturing from titanium scrap [PDF]
MATEC Web of Conferences, 2020 The main materials for 3D printing of titanium are fine metal alloy powders from which produce final articles with required quality. These powders must have definite chemical compositions, physical/mechanical characteristics, and also necessary ...
Yanko Taras +2 more
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Kuangchan zonghe liyongUsing carbon foam (CF) as supporting materials, paraffin (PW), palmitic acid (PA) and stearic acid (SA) as phase change main materials and Panzhihua vanadium tailings (VT) as thermal conductivity enhancer, vanadium tailings/carbon foam/organic composite ...
Zhong XU +5 more
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Microstructure evolution and mechanical behavior of Ti-22Al-23Nb-1Mo-1Zr alloy ring forging
Cailiao gongcheng, 2022 The microstructure evolution, tensile properties and fracture behavior of five-element Ti2AlNb alloy Ti-22Al-23Nb-1Mo-1Zr (atom fraction/%) ring forging at different solution temperatures of 850, 880, 900 ℃ and 750 ℃ aging treatment (AT) were studied by ...
LIU Shishuang +6 more
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Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control
Advanced Engineering Materials, EarlyView.This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian +4 more
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Metals, 2022 During continuous casting, argon blowing from tundish cover (ABTC) can greatly prevent the flow of the remaining air and decrease the reoxidation of molten steel in tundish.
Yang Li +6 more
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Advanced Engineering Materials, EarlyView.Molecular dynamics simulations are advancing the study of ribonucleic acid (RNA) and RNA‐conjugated molecules. These developments include improvements in force fields, long‐timescale dynamics, and coarse‐grained models, addressing limitations and refining methods.
Kanchan Yadav, Iksoo Jang, Jong Bum Lee
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Optimization of Sulfur Determination in Vanadium-Titanium Magnetite Ore in the Panxi Area
Yankuang ceshiSulfur is an important quality and environmental indicator in vanadium-titanium magnetite ore, so the accurate measurement of sulfur is of great significance for subsequent process control and pollution evaluation.
Yong WANG, Zijing LI, Lin LIU, Guowei LI
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