High Purity
Nucleation of Recrystallization of High Purity Aluminium
... in high purity aluminium foil during the different heating up rates of annealing, it generally analysed the evolution of microstructure and ...that high angle grain ...
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Influence of Carbon Additions on the Dynamic Recrystallization of High Purity α Iron
... The different initial grain sizes are associated with static re- crystallization and grain growth during the heating stage, and the temperature stabilization delay, required to ensure thermal homogeneity. The kinetics of ...
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Properties and Performance of High Purity Thermal Barrier Coatings
... The improved durability of coating ZY-3 relative to ZY-4 can be attributed to the reduced sintering of the high purity coating. Less sintering results in a lower degree of coating stiffening after thermal ...
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Properties and Performance of High Purity Thermal Barrier Coatings
... the high purity coating results in less stiffening and a lower level of residual stress (due to the sintering shrinkage and to differential thermal contraction during thermal ...higher purity on ...
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Production of High Purity Metals: A Review on Zone Refining Process
... High purity (99.999% (5N) or more) metals play a key role in current high-tech industrial field, such as special electronics, integrate circuits, photovoltaic sys- tems, optical elements, chemical ...
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High purity Cu nanocrystal synthesis by a dynamic decomposition method
... of high-purity Cu nanocrystals is studied using a common chemical vapor deposition precursor of cupric ...approximation. High crystalline Cu nanocrystals without floccules were obtained from thermal ...
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Self Diffusion along Dislocations in Ultra High Purity Iron
... Self-diffusion along dislocations in ultra high purity iron containing 0.5–1.2 mass ppm carbon, 0.1–1.0 mass ppm nitrogen and 1.8–4.0 mass ppm oxygen has been studied by the radioactive tracer method with ...
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INVESTIGATION OF REFINING TECHNIQUE IN ULTRA HIGH PURITY GE FOR PHARMACEUTICAL USE
... the high purification efficiency can also be reformed and if optimized stirring can be operated, the travel speed of molten zone can be adjusted by various ...ultra-high purity of ...
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Optimal High Purity Acetone Production in a Batch Extractive Distillation Column
... of high purity acetone in the batch extractive distillation into step 3 is ...percentages purity of the distillate product can be produced by an optimal reflux ratio profile with two or more time ...
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High Purity Germanium, a Review on Principle Theories and Technical Production Methodologies
... DOI: 10.4236/jcpt.2017.74005 74 Journal of Crystallization Process and Technology Zone length: Spim et al. [36] states that longer molten zones have more bene- ficial effect when performed at the earlier passes, while ...
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Effect of Aging on the Tensile Properties of High Purity Fe 50Cr Alloys
... from high-purity electrolytic iron (99.995%), high-purity chromium ...and high-purity white cast iron by induction melting in a copper-cold-crucible under a ...
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Effect of Trace Amounts of Carbon and Nitrogen on the High Temperature Oxidation Resistance of High Purity FeCrAl Alloys*
... of high purity model FeCrAl alloys illustrates that the oxidation behaviour of these materials is strongly affected by trace amounts (up to 300 mass ppm) of carbon and/or nitrogen ...term high ...
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Measurement of the Potassium Content of Different Food Samples with High Purity Germanium Detectors
... Potassium is one of the elements responsible for natural radioactivity. It is also a very important mineral for hu- man life. It is found in soil and water, and stored in food like beans, fruit and cacao. Samples of the ...
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Optimization of the Granulation Binders of High Purity Carbothermic Reduction for Solar Grade Silicon
... The direct carbothermic reduction process from high-purity silica is promising for next-generation low-cost silicon solar cells. In this process, the granulation process is essential to avoid blowout of the ...
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Microstructural and Textural Evolution by Continuous Cyclic Bending and Annealing in a High Purity Titanium
... Microstructural and textural evolution by continuous cyclic bending (CCB) and annealing in a high purity titanium sheet has been investigated. The hardness distribution through thickness in the CCBent sheet ...
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High Purity Metals as Primary Calibration Materials for Elemental Analysis Their Importance and Their Certification
... For calculating the uncertainty of this result the following assumptions were made. The single values determined above LODs have relative uncertainties of 30% and the single val- ues below “LVs” have relative ...
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Preparation of Ultra High Purity Niobium
... the starting material commercial sintered rods have been used. In order to begin the process already with a metal of relatively high purity, these rods were at first repeatedly (at least three times) ...
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Mechanochemical Methods in the Production of High Purity Gases
... The development of advanced and cost-effective methods is of prime impor- tance for manufacturers of high purity gases. In this paper a new strategy in the development of gas flow purification technologies ...
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Evaluation of purity with its uncertainty value in high purity lead stick by conventional and electro-gravimetric methods
... soluble in nitric acid so there should be no nitric acid in the solution. So fuming should be strong to ensure complete removal of nitric acid from the solution. The solubility of lead sulfate increases with temperature ...
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Large scale synthesis of high purity iopamidol
... As such, particularly when considering large amounts of reactants and substrates to be employed, for instance on an industrial scale, the need of preparing the iodinating agent before usage and its storage may become ...
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