RU2007149083A - METHOD FOR DETERMINING STRENGTH PROPERTIES OF THINFINEST FILMS AND NANOFILMS AND A DEVICE FOR ITS IMPLEMENTATION - Google Patents
METHOD FOR DETERMINING STRENGTH PROPERTIES OF THINFINEST FILMS AND NANOFILMS AND A DEVICE FOR ITS IMPLEMENTATION Download PDFInfo
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- RU2007149083A RU2007149083A RU2007149083/28A RU2007149083A RU2007149083A RU 2007149083 A RU2007149083 A RU 2007149083A RU 2007149083/28 A RU2007149083/28 A RU 2007149083/28A RU 2007149083 A RU2007149083 A RU 2007149083A RU 2007149083 A RU2007149083 A RU 2007149083A
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
1. Способ определения прочностных свойств тончайших пленок и нанопленок, включающий операции подготовки образца материала для испытания, размещения его на экспериментальной установке, последующего нагружения односторонним давлением, замера необходимых параметров, обработки результатов измерений и составления заключения о прочностных свойствах пленочного материала, отличающийся тем, что испытуемый образец кладут на перфорированное основание, зажимают выступающие за пределы рабочей части края образца заклинивающим кольцом с обеспечением герметичности, подают рабочую среду через отверстия перфорированного основания для создания одностороннего давления на образец, наблюдают за изменением формы образующегося купола с замерами контролируемых параметров по мере нарастания давления, в частности, с переносом данных на цифровые носители информации и обрабатывают полученную информацию об изменении формы купола в зависимости от вида деформации, причем механические характеристики оценивают по значениям модулей упругости. ! 2. Способ по п.1, отличающийся тем, что для упругих материалов модуль упругости определяют по формуле ! , ! где Е - модуль упругости материала тончайшей пленки или нанопленки; ! N - согласующий коэффициент; ! p - равномерно распределенное давление; ! D - диаметр рабочей части образца; ! ν - коэффициент Пуассона материала; ! h - первоначальная толщина пленки; ! Н - высота подъема купола (прогиб в центре образца). ! 3. Способ по п.2, отличающийся тем, что согласующий коэффициент N выбирают в пределах от 0,28 до 0,32 в зависимости от величины коэффициента Пуассона материала пленки. ! 4. Способ по п.1, отличающийся те1. A method for determining the strength properties of the thinnest films and nanofilms, including the operation of preparing a sample of material for testing, placing it on an experimental setup, subsequent loading with one-sided pressure, measuring the necessary parameters, processing the measurement results and drawing conclusions about the strength properties of the film material, characterized in that the test sample is placed on a perforated base, and the edges of the sample protruding beyond the working part are clamped with a jamming ring to ensure tightness, feed the working medium through the holes of the perforated base to create one-sided pressure on the sample, observe the change in the shape of the formed dome with measurements of controlled parameters as the pressure builds up, in particular, with the transfer of data to digital storage media and process the received information about the change in the shape of the dome depending on the type of deformation, and the mechanical characteristics are estimated by the values of the elastic moduli. ! 2. The method according to claim 1, characterized in that for elastic materials the elastic modulus is determined by the formula! ! where E is the elastic modulus of the material of the thinnest film or nanofilm; ! N is a matching coefficient; ! p is the uniformly distributed pressure; ! D is the diameter of the working part of the sample; ! ν is the Poisson's ratio of the material; ! h is the initial film thickness; ! H - the height of the dome (deflection in the center of the sample). ! 3. The method according to claim 2, characterized in that the matching coefficient N is selected in the range from 0.28 to 0.32 depending on the value of the Poisson's ratio of the film material. ! 4. The method according to claim 1, characterized in
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RU2007149083/28A RU2387973C2 (en) | 2007-12-25 | 2007-12-25 | Method for detection of strength properties of thinnest films and nanofilms and device for its realisation |
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RU2007149083/28A RU2387973C2 (en) | 2007-12-25 | 2007-12-25 | Method for detection of strength properties of thinnest films and nanofilms and device for its realisation |
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RU2007149083A true RU2007149083A (en) | 2009-06-27 |
RU2387973C2 RU2387973C2 (en) | 2010-04-27 |
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Cited By (2)
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CN109374419A (en) * | 2018-09-26 | 2019-02-22 | 北京工业大学 | It is a kind of for the sealing device of Bubbling method test specimens mechanical property can be heated |
CN113640133A (en) * | 2021-08-11 | 2021-11-12 | 中国工程物理研究院激光聚变研究中心 | Sealing film mechanical property testing device based on expansion method |
Families Citing this family (3)
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RU2611979C1 (en) * | 2015-12-16 | 2017-03-01 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | Device for determining properties of thin-walled material of hemispherical segments |
CN110491234B (en) * | 2019-08-29 | 2023-05-05 | 北京航空航天大学 | Experimental device for biomembrane mechanical pressure and mechanical characteristics |
RU2758417C1 (en) * | 2021-03-10 | 2021-10-28 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский университет "Московский институт электронной техники" | Method for determining mechanical properties of thin film membranes formed over round holes |
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2007
- 2007-12-25 RU RU2007149083/28A patent/RU2387973C2/en not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109374419A (en) * | 2018-09-26 | 2019-02-22 | 北京工业大学 | It is a kind of for the sealing device of Bubbling method test specimens mechanical property can be heated |
CN113640133A (en) * | 2021-08-11 | 2021-11-12 | 中国工程物理研究院激光聚变研究中心 | Sealing film mechanical property testing device based on expansion method |
CN113640133B (en) * | 2021-08-11 | 2024-05-07 | 中国工程物理研究院激光聚变研究中心 | Sealing film mechanical property testing device based on expansion method |
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RU2387973C2 (en) | 2010-04-27 |
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