RU2013155766A - METHOD FOR DETERMINING SOLID THERMAL CONDUCTIVITY - Google Patents
METHOD FOR DETERMINING SOLID THERMAL CONDUCTIVITY Download PDFInfo
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- RU2013155766A RU2013155766A RU2013155766/28A RU2013155766A RU2013155766A RU 2013155766 A RU2013155766 A RU 2013155766A RU 2013155766/28 A RU2013155766/28 A RU 2013155766/28A RU 2013155766 A RU2013155766 A RU 2013155766A RU 2013155766 A RU2013155766 A RU 2013155766A
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- thermal conductivity
- interferometer
- samples
- reference samples
- light beam
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- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
Способ определения теплопроводности твердых тел, в котором создают стационарный одномерный тепловой поток через систему, представляющую собой исследуемый образец, закрепленный между двумя одинаковыми эталонными образцами, изготовленными из одного материала известной теплопроводности, где все образцы выполнены в форме прямых цилиндров с одинаковыми основаниями и приведены в контакт торцевыми сторонами, при этом тепловой поток направляют перпендикулярно плоскости контактов, отличающийся тем, что эталонные образцы изготавливают из прозрачного материала, систему помещают в интерферометр, при создании в системе стационарного одномерного теплового потока интерференционным методом измеряют изменение профиля фазы светового пучка интерферометра, проходящего через эталонные образцы, а теплопроводность вычисляют из измеренного изменения профиля фазы светового пучка интерферометра, теплопроводности эталонных образцов и высоты исследуемого образца, при этом все образцы изготавливают так, чтобы в каждом эталонном образце можно было выделить область в виде прямоугольного параллелепипеда, у которого две противоположных грани являются частью боковой поверхности цилиндра, а стороны этого параллелепипеда имеют длину не меньше 1 мм, и измерение проводят именно в этих областях, направляя световой пучок интерферометра перпендикулярно тем граням областей, которые являются частью боковой поверхности цилиндра.A method for determining the thermal conductivity of solids, in which a stationary one-dimensional heat flux is created through a system representing a test sample fixed between two identical reference samples made of the same material of known thermal conductivity, where all samples are made in the form of straight cylinders with the same bases and brought into contact end faces, while the heat flux is directed perpendicular to the plane of contacts, characterized in that the reference samples are made from of transparent material, the system is placed in an interferometer, when creating a stationary one-dimensional heat flux in the system using the interference method, the phase profile of the light beam of the interferometer passing through the reference samples is measured, and the thermal conductivity is calculated from the measured change in the phase profile of the light beam of the interferometer, the thermal conductivity of the reference samples and the height of the sample while all samples are made so that in each reference sample it was possible to select a region in the form of a rectangular th parallelepiped, whose two opposite faces are part of the side surface of the cylinder and the sides of the parallelepiped having a length not less than 1 mm, and the measurement is carried out in these areas, directing a light beam interferometer perpendicular to the faces of the areas that are part of the side surface of the cylinder.
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Application Number | Priority Date | Filing Date | Title |
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RU2013155766/28A RU2558273C2 (en) | 2013-12-17 | 2013-12-17 | Method for determining thermal conductivity of solid bodies |
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RU2013155766/28A RU2558273C2 (en) | 2013-12-17 | 2013-12-17 | Method for determining thermal conductivity of solid bodies |
Publications (2)
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RU2013155766A true RU2013155766A (en) | 2015-06-27 |
RU2558273C2 RU2558273C2 (en) | 2015-07-27 |
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RU2013155766/28A RU2558273C2 (en) | 2013-12-17 | 2013-12-17 | Method for determining thermal conductivity of solid bodies |
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RU (1) | RU2558273C2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109781780B (en) * | 2019-01-03 | 2022-06-07 | 西安交通大学 | Simple and easy high heat conduction material coefficient of heat conductivity steady state test system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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SU1326975A1 (en) * | 1986-03-28 | 1987-07-30 | Казанский государственный университет им.В.И.Ульянова-Ленина | Apparatus for determining thermophysical properties of materials |
RU2330270C2 (en) * | 2006-05-31 | 2008-07-27 | Елена Вячеславовна Абрамова | Device and calculation method of thermal resistivity |
RU2343466C1 (en) * | 2007-06-14 | 2009-01-10 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт метрологии им. Д.И. Менделеева" | Method of materials testing for thermal conduction |
RU2387981C1 (en) * | 2009-03-11 | 2010-04-27 | Государственное образовательное учреждение высшего профессионального образования "Тамбовский государственный технический университет" (ГОУ ВПО "ТГТУ") | Method for complex detection of thermal characteristics of materials |
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Effective date: 20181218 |