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New Advanced Ceramics Standards from ASTM Cover Fracture Mirror Size Analysis, Tensile Strength DataSubcommittee C28.01 on Mechanical Properties and Performance, part of ASTM International Committee C28 on Advanced Ceramics, has recently approved two new standards, ASTM C1678 , Practice for Fractographic Analysis of Fracture Mirror Sizes in Ceramics and Glasses, and ASTM C1683 , Practice for Size Scaling of Tensile Strengths Using Weibull Statistics for Advanced Ceramics., ASTM C1678 —Bringing Consistency to Fracture Mirror Size Analysis, Fracture mirror size analysis is a powerful quantitative tool for the interpretation of broken ceramic and glass articles. While this type of analysis can be used to determine the stress in a part at the instant of fracture, inspection and interpretation procedures have often varied, resulting in uncertainty in stress estimates. ASTM C1678, Practice for Fractographic Analysis of Fracture Mirror…, ASTM C1683 —Scaling Strength Values, ASTM C1683, Practice for Size Scaling of Tensile Strength Using Weibull Statistics for Advanced Ceramics, provides methodology to convert fracture strength parameters estimated from data obtained with one test geometry to strength parameters representing other test geometries. Stephen Duffy, chair of civil engineering, Cleveland State University, and C28 member, says that companies producing…
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Ceramic and glass companies, as well as universities and government laboratories, will be the primary users of a new ASTM standard that allows for the flexural strength determination of components made in a round shape or after finish machining with minimal waste. The standard, ASTM C1684 , Test Method for Flexural Strength of Advanced Ceramics at Ambient Temperature-Cylindrical Rod Strength, was…
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ASTM International Committee C28 on Advanced Ceramics and the American Ceramic Society are co-sponsoring a workshop, Needs and Opportunities for Strength and Fracture Standards at Micro and Nano Scales, on Jan. 27, 2008, from 1:00 to 5:00 p.m. at the Hilton Daytona Beach Resort in Daytona Beach, Fla. The workshop will be held in conjunction with the ASTM Committee C28 meetings to be held Jan. 26-…
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ASTM International Committee B08 on Metallic and Inorganic Coatings has recently approved a revision of one of its most important standards, B 633 , Specification for Electrodeposited Coatings of Zinc on Iron and Steel. B 633 is under the jurisdiction of Task Group B08.08.04 on Soft Metals, which is part of Subcommittee B08.08 on Metallic Coatings. Zinc coatings are used to provide a sacrificial…
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When ASTM International Committee F38 on Unmanned Aircraft Systems was formed in 2003, it is safe to say no one on the committee was thinking about catapults and trebuchets. However, a study of these medieval devices was integral to the development of a new F38 standard, F 2585 , Specification for Design and Performance of Pneumatic-Hydraulic Unmanned Aircraft System (UAS) Launch System. F 2585…
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All interested parties are invited to attend the meetings of ASTM International Committee F38 on Unmanned Aircraft Systems on Nov. 13 and 14, during the November Committee Week in Atlanta, Georgia. The subjects to be discussed at the meeting are sense-and-avoid, terminology, launchers, visual range flight practices, commercial pilot practices and manufacturing quality assurance practice. One trio…
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ASTM International Subcommittee G01.10 on Corrosion in Soils will be conducting two round robin testing procedures on Tuesday, November 14, from 9:00 a.m. to 3:00 p.m. during ASTM meetings in Atlanta, Ga. One round robin will be for the development of a new standard test method to measure the oxidation-reduction potential (redox) of soils, while the other will address precision and bias for the 4…
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Having the necessary documentation to maintain and repair any sort of aircraft is of the utmost importance. With this in mind, ASTM International Committee F38 on Unmanned Aircraft Systems has developed a new standard, F 2584 , Practice for Maintenance and Development of Maintenance Manuals for Light Unmanned Aircraft System (UAS). The new practice, which is under the jurisdiction of Subcommittee…
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ASTM International Committee G01 on Corrosion of Metals has an ongoing commitment to help the oilfield and refinery industries adopt and use state-of-the-art techniques to select corrosion inhibitors. As part of this commitment, two new standards developed by Subcommittee G01.05 on Laboratory Corrosion Tests have recently been published: G 184, Practice for Evaluating and Qualifying Oilfield and…
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Two subcommittees of ASTM International G01 on Corrosion of Metals have recently reorganized in order to broaden the scope of their standardization efforts. All interested parties are invited to participate in the ongoing work of Committee G01 and its subcommittees. Subcommittee G01.09, formerly on Corrosion in Natural Waters, has been renamed Corrosion of Metals in Waters to reflect a broader…