Heat-capacity measurements on small samples: The hybrid method

Klaasse, J. C. P.; Brűck, E. H.
December 2008
Review of Scientific Instruments;Dec2008, Vol. 79 Issue 12, p123906
Academic Journal
A newly developed method is presented for measuring heat capacities on small samples, particularly where thermal isolation is not sufficient for the use of the traditional semiadiabatic heat-pulse technique. This “hybrid technique” is a modification of this heat-pulse method in case the temperature drift of the sample after the heat pulse is not linear but exponential. Deliberate extrapolations of these exponential drift curves, dependent on the evaluated relaxation time, yield reliable results for the temperature steps. The method is faster than the traditional relaxation method, and by comparing with the values published by the National Bureau of Standards (NBS) on copper, the accuracy is shown to be of the order of 1%.


Related Articles

  • PIONEERS IN METALS RESEARCH--PART III. Simcoe, Charles R. // Advanced Materials & Processes;Nov/Dec2015, Vol. 173 Issue 10, p34 

    The third part of a series about metals research pioneers is presented, with a focus on how Paul Dyer Mercia and his colleagues at the U.S. National Bureau of Standards discovered the principles governing the age hardening of the alloy duralumin in the early 1900s. Topics covered include making...

  • THE EVOLUTION OF THE MODIFIED D 695 COMPRESSION TEST METHOD. Adams, Donald F. // High Performance Composites;Sep2014, Vol. 22 Issue 5, p15 

    The article discusses how the Modified D 695 test method for compression developed by the American Society for Testing and Materials (ASTM) has evolved after 70 years. Topics covered include the U.S. National Bureau of Standards pack testing approach published in 1933, the W.P. Montgomery single...

  • AIRTIGHT CASE.  // Log Home Living;2015 Annual Buyers Guide, p46 

    The article focuses on the energy efficiency of log homes. Topics discussed include a study by the National Bureau of Standards which compared log walls, insulated and annulated stud-framed walls, and insulated and uninsulated masonry, areas of special importance that should be included in...

  • Revising the Standard for Artists' Paints. GOTTSEGEN, M. D. // American Artist;Jun1980, Vol. 44 Issue 455, p85 

    The article discusses the proposed revision of the U.S. standard for artists' paints. A commercial standard for artists' paint was first published as CS98-42 by the U.S. National Bureau of Standards (NBS) in 1942. The Paint Standard sets the requirements for the best professional grade of oil...

  • CORROSION-RESISTANT EQUIPMENT: THEN AND NOW. Holtzelaw, William F. "Bill" // Composites Technology;Feb2008, Vol. 14 Issue 1, p7 

    The article focuses on the development of standards for corrosion-resistant equipment in the U.S. composites industry. It is stated that Owens Corning Fiberglass (OCF) has a history of developing fiberglass-reinforced plastic (FRP) products and markets. "Custom Contact Molded Reinforced...

  • ASTM Task Group is Working On A New Flammability Tester. Gobeil, Norman B. // Textile Chemist & Colorist;Feb73, Vol. 5 Issue 2, p21 

    During March 1970 an ASTM task group on apparel flammability began work on the development of a tester that could accurately measure both ease of ignition and rate of burning. The experimental tester resulting from the project incorporates some of the principles of the 45° angle tester and...

  • Reference Program Proposed For Flammability Testing.  // Textile Chemist & Colorist;Apr75, Vol. 7 Issue 4, p10 

    The article informs that the flammability subcommittee of ASTM Committee D-13 on Textiles is to sponsor a collaborative reference program for flammability testing to be conducted by the U.S. National Bureau of Standards (NBS). According to the subcommittee, the program is absolutely essential to...

  • state and society. CBW, GBI // Physics Today;Jan78, Vol. 31 Issue 1, p101 

    Presents an update on research on physics in the U.S. as of January 1978. Theme of the meeting of the American Institute of Physics Corporate Associates; Threats regarding the retrenchment in the National Bureau of Standards; Difficulties scientists face in trying to leave the Soviet Union.

  • Real Estate.  // China Business Review;Sep/Oct2010, Vol. 37 Issue 5, p6 

    The article reports on the increase of housing prices in major cities by 11.4 percent year on year in June 2010, according to the U.S. National Bureau of Standards (NBS).


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics