LOGIN TO YOUR ACCOUNT

Username
Password
Remember Me
Or use your Academic/Social account:

CREATE AN ACCOUNT

Or use your Academic/Social account:

Congratulations!

You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.

Important!

Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message

CREATE AN ACCOUNT

Name:
Username:
Password:
Verify Password:
E-mail:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Hamilton, Ian
Languages: English
Types: Doctoral thesis
Subjects: Q1, QD
This research involves the development of a totally new approach to thermal analysis in which\ud microwave energy is used not only to heat the sample but also to detect thermally induced\ud transformations via the effects of changes in its dielectric properties. Use of these properties, rather than the more usual mass or enthalpy changes of conventional thermal analysis, provide a unique insight into thermal processes.\ud \ud Microwave thermal analysis (MWTA) is a technique for studying the efficiency of the conversion of\ud microwave to thermal energy by measuring the microwave power-temperature relationship for different materials. Power/temperature verses time profiles in some cases give an indication of physical and chemical changes occurring in the sample, via changes in the dielectric constant.\ud \ud \ud An instrument for performing microwave thermal analysis (MWTA) has been designed, constructed\ud and applied to an extensive range of chemical systems exhibiting a variety of physicochemical\ud transformations, including melting, decomposition and solid-solid phase changes. MWTA has been\ud shown to provide both qualitative and quantitative information with sample masses ranging from the analytical (1 to 20 mg) to semi-preparative (0.5 to 5.0 g) scales. It has been demonstrated that MWTA can be used in conjunction with complementary techniques such as differential thermal analysis (DTA)\ud and X-ray powder diffraction (XRD) to provide additional data. MWTA has the potential to be\ud extended to incorporate some of the latest developments in thermal analysis, including methods involving temperature modulation and evolved gas analysis.\ud \ud \ud MWTA has the potential to have applications in the design of industrial processes by providing\ud detailed information on the effect of microwave radiation on both physical (e.g. phase changes) and chemical processes.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • [1] Wendlandt WW. Thermal methods of analysis. Texas: interscience publishers 1964.
    • [2] T.Meisel. To what extent is thermal analysis an analytical method? Journal of thermal analysis 1984;29:1379-92.
    • [3] Roberts-Austen WC. Fifth report to the alloys research committee: Steel. Proc Inst Mech Engrs. 1899;1:35.
    • [4] Norton FH. Critical study of the differential thermal method for the identification of the clay minerals American ceramic society 1939;22:54.
    • [5] Boersma SL. A theory of differential thermal analysis and new method of measurement and interpretation J Amer Ceram Soc. 1955;38:281.
    • [6] A.C. Metaxas RJM. Industrial microwave Heating London Peter Peregrinus 1983.
    • [7] Hippel ARV. Dielectric material and their applications MIT press 1954.
    • [8] J.P Tierney PL. Microwave Assisted Organic Synthesis Blackwell publishing 2005.
    • [9] Gedye R, Smith F, Westaway K, Ali H, Baldisera L, Laberge L, et al. The Use of Microwave-Ovens for Rapid Organic-Synthesis. Tetrahedron Letters. 1986;27(3):279-82.
    • [10] Gedye R, Smith F, Westaway K. Microwaves in Organic and Organometallic Synthesis. Journal of Microwave Power and Electromagnetic Energy. 1991;26(1):3-17.
    • [11] Karmazsin E, Barhoumi R, Satre P, Gaillard F. Use of Microwaves in Thermal-Analysis. Journal of Thermal Analysis. 1985;30(1):43-7.
    • [12] Karmazsin E, Barhoumi R, Satre P. Thermal-Analysis with Microwaves - Temperature and Power-Control. Journal of Thermal Analysis. 1984;29(6):1269-77.
    • [13] Karmazsin E. Use of Low-Power and High-Power Microwave-Energy for ThermalAnalysis. Thermochimica Acta. 1987 Feb 1;110:289-95.
    • [14] Parkes GMB, Bond G, Barnes PA, Charsley EL. Development of a new instrument for performing microwave thermal analysis. Review of Scientific Instruments. 2000 Jan;71(1):168-75.
    • [15] Parkes GMB, Barnes PA, Charsley EL, Bond G. Microwave differential thermal analysis in the investigation of thermal transitions in materials. Analytical Chemistry. 1999 Nov 15;71(22):5026-32.
    • [16] Parkes GMB, Barnes PA, Charsley EL, Bond G. Microwave thermal analysis - A new approach to the study of the thermal and dielectric properties of materials. Journal of Thermal Analysis and Calorimetry. 1999;56(2):723-31.
    • [17] Parkes GMB, Barnes PA, Bond G, Charsley EL. Qualitative and quantitative aspects of microwave thermal analysis. Thermochimica Acta. 2000 Aug 7;356(1-2):85-96.
  • No related research data.
  • Discovered through pilot similarity algorithms. Send us your feedback.

Share - Bookmark

Cite this article