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- E-ISSN 2288-8985
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Development of Certified Reference Materials for Specific Surface Area
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2005, v.18 no.1, pp.74-84
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(2005). Development of Certified Reference Materials for Specific Surface Area. Analytical Science and Technology, 18(1), 74-84.
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Abstract
Understandings of adsorption characteristic of interface are very important in several advanced materials processes, related to NT and BT technology. Volumetric gas adsorption method, suitable for absolute measurements, is regarded as the standardized measurement technique for specific surface area. In order to verify the reliability of commercial equipments, certified reference materials (called CRM) of specific surface area are developed and evaluated its uncertainty factors by standard equipment which has traceability to SI units. Specific surface areas of developed materials are 10.72 0.46 m2g-1 for silicon nitride powders and 149.50 3.44 m2g-1 for alumina. These disseminations of CRMs would result in improved reliability chains in industrial processes, and lead eventually to contribution to productivity improvement, quality management, safety evaluation, and possibly to new material development.
- keywords
- Specific Surface Area, Certified Reference Materials, Gas Adsorption, BET, Volumetric Method
Reference
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(1975) Films on Solid Surfaces, Academic Press
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(1990) Adsorption Engineering, Kodanaha Press
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Determination of the specific surface area of solid by gas adsorption using the BET method,
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Determination of the specific surface area of advanced ceramic materials by gas adsorption,
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KRISS-99-070-SP, (1999) KRISS Guide to the Expression of Uncertainty in Measurement,
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(1963) Trans. Faraday Soc. 59,
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