{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"This paper discusses the short-pulse-flash method developed for thermal diffusivity measurements on thin films. Two kinds of CVD diamond film have been prepared, and their thermal diffusivity in the perpendicular direction has been measured with this method. The measurement errors caused by the surface coating are discussed.","authors":[],"categoryName":"|","doi":"","fpage":"479","id":"a8eca027-7300-450b-8e69-67b0949cc17a","issue":"2","journal":{"abbrevTitle":"IJOT","id":"88c18f3f-e762-4864-a791-6f95a523c3f9","issnPpub":"0195-928X","publisherId":"IJOT","title":"International Journal of Thermophysics"},"keywords":[{"id":"fdb3c0e3-b5d8-4c50-a3b3-637928eee499","keyword":"diamond;film;flash method;thermal diffusivity","originalKeyword":"diamond;film;flash method;thermal diffusivity"}],"language":"en","publisherId":"0195-928X_2000_2_2","title":"Thermal diffusivity measurement of diamond films","volume":"21","year":"2000"},{"abstractinfo":"The thermal diffusivity of brittle coatings cannot be measured by the flash method directly because of the difficulty of preparing free-standing samples. Adopting the flash method using a two-layer composite sample, it is possible to measure thermal diffusivity if the radiant pulse is well defined and good thermal contact on the interface of the composite sample can be ensured. Using an equilateral trapezoidal pulse of an Nd-glass laser measuring the dimensionless temperature history of the rear face of the sample, we determined the thermal diffusivity of thermal control coatings in the temperature range of 80 to 200 degrees C. The results for different thicknesses of substrate showed that the thermal contact resistance of the interface can be neglected.","authors":[],"categoryName":"|","doi":"","fpage":"535","id":"99bd858c-3faa-4567-a7e5-7273a33fbd3b","issue":"2","journal":{"abbrevTitle":"IJOT","id":"88c18f3f-e762-4864-a791-6f95a523c3f9","issnPpub":"0195-928X","publisherId":"IJOT","title":"International Journal of Thermophysics"},"keywords":[{"id":"87e7aae0-1ff8-4e0e-bc17-b031c4e0e8a1","keyword":"flash method;thermal contact resistance;thermal control;coatings;thermal diffusivity;two-layer composite sample","originalKeyword":"flash method;thermal contact resistance;thermal control;coatings;thermal diffusivity;two-layer composite sample"}],"language":"en","publisherId":"0195-928X_2000_2_3","title":"Measurement of thermal diffusivity of thermal control coatings by the flash method using two-layer composite sample","volume":"21","year":"2000"},{"abstractinfo":"The nanostructured zirconia coatings were deposited by atmospherically plasma spraying. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction were used to investigate the microstructure of the zirconia coatings. Thermal diffusivity values at normal temperatures have been evaluated by laser flash technique. Effect of annealing on the microstructure evolution of the zirconia coating has been performed. The grains and thermal diffusivity are increased with increasing annealing time and temperature. The grain growth is according to the GRIGC (the grain rotation induced grain coalescence) mechanism. The increase in thermal diffusivity is attributed to the grain growth and the decrease in porosity of nanostructured zirconia coatings.","authors":[{"authorName":"Na WANG","id":"84ffb284-7e3e-4f62-9628-d4b36998dd2f","originalAuthorName":"Na WANG"},{"authorName":" Chungen ZHOU","id":"1f993c34-bb3e-4651-b452-6e6560c89b09","originalAuthorName":" Chungen ZHOU"},{"authorName":" Shengkai GONG","id":"662eec2d-2505-4683-804f-d314f001d81a","originalAuthorName":" Shengkai GONG"}],"categoryName":"|","doi":"","fpage":"793","id":"f0898212-23cd-47af-92d5-6fca219969c0","issue":"6","journal":{"abbrevTitle":"CLKXJSY","coverImgSrc":"journal/img/cover/JMST.jpg","id":"11","issnPpub":"1005-0302 ","publisherId":"CLKXJSY","title":"材料科学技术(英文)"},"keywords":[{"id":"97099b08-6e5d-4b4c-a3a5-5b867968fa12","keyword":"Grain size","originalKeyword":"Grain size"},{"id":"a1da6070-5be4-47e0-aaf9-ed3ef3502624","keyword":"null","originalKeyword":"null"},{"id":"abda38f1-f26c-4a6c-8a2a-848af6f67a8b","keyword":"null","originalKeyword":"null"},{"id":"a8b4c478-e7de-49fa-a371-2bde45a11c98","keyword":"null","originalKeyword":"null"}],"language":"en","publisherId":"1005-0302_2006_6_12","title":"Influence of Annealing on the Grain Growth and Thermal Diffusivity of Nanostructured YSZ Thermal Barrier Coating","volume":"22","year":"2006"},{"abstractinfo":"In this work, a photothermal-resistance technique is developed to characterize the thermophysical properties of one-dimensional micro/nanostructures. In this technique, a periodically modulated laser beam is used to achieve noncontact heating of suspended individual wires. The temperature response of the sample is monitored by measuring its electrical resistance variation. A 25.4 mu m thick platinum wire is used as the reference sample to verify the technique. Applying the photothermal-resistance technique, the thermal diffusivity of single-wall carbon nanotube bundles is measured. The measured thermal diffusivities for three different single-wall carbon nanotube bundles are 2.98x10(-5), 4.41x10(-5), and 6.64x10(-5) m(2)/s, respectively. These values are much less than the thermal diffusivity of graphite. (c) 2006 American Institute of Physics.","authors":[],"categoryName":"|","doi":"","fpage":"","id":"5db9bbd8-652e-498f-9e2c-01e7286a8e32","issue":"18","journal":{"abbrevTitle":"APL","id":"5e3c428a-be96-46d5-bcb9-94a4fce832b0","issnPpub":"0003-6951","publisherId":"APL","title":"Applied Physics Letters"},"keywords":[{"id":"0f153209-f00e-44fe-a891-f8475cb724eb","keyword":"conductivity;heat","originalKeyword":"conductivity;heat"}],"language":"en","publisherId":"0003-6951_2006_18_1","title":"Development of photothermal-resistance technique and its application to thermal diffusivity measurement of single-wall carbon nanotube bundles","volume":"88","year":"2006"},{"abstractinfo":"The flash method including the single- and double-ended method has gained widespread acceptance for measuring thermal diffusivity of thick foils (in millimeters) as well as thin films (in microns). However when the method is employed, some basic experimental conditions are assumed. In this paper, two of the assumptions, the finite absorption depth effect and the nonlinearity of the detector, are discussed in the situation of thin film samples. For the first one, the deviation of the factor omega(1/2) (=pi(2) alpha t(1/2)/L(2)) from 1.37 and the corresponding errors in deriving thermal diffusivity from t(1/2) are discussed for various relative absorption depth delta. The result indicates criteria for the method to be available, that is, L>10 delta and L>14 delta for the double- and the single-ended method. For the second one, by considering the errors in voltage output of a (Hg, Cd)Te IR detector, how the factor omega(1/2) deviates from 1.37 and the corresponding errors in thermal diffusivity measurement under various initial temperature conditions are discussed. The results are shown graphically and tabulated. (C) 1995 American Institute of Physics.","authors":[],"categoryName":"|","doi":"","fpage":"4249","id":"679b5236-ef7a-4f61-a147-f9f686c7d95f","issue":"8","journal":{"abbrevTitle":"ROSI","id":"dec6103f-6392-4686-a1ec-73cb66699b6f","issnPpub":"0034-6748","publisherId":"ROSI","title":"Review of Scientific Instruments"},"keywords":[{"id":"5a919854-dacf-4313-9b41-74b0f71178e4","keyword":"radiometry;pulse","originalKeyword":"radiometry;pulse"}],"language":"en","publisherId":"0034-6748_1995_8_1","title":"EFFECTS OF FINITE ABSORPTION DEPTH AND INFRARED DETECTOR NONLINEARITY ON THERMAL-DIFFUSIVITY MEASUREMENT OF THIN-FILMS USING THE FLASH METHOD","volume":"66","year":"1995"},{"abstractinfo":"提拉法生长了Nd3+:Gd3Ga5O12(Nd:GGG) 单晶, 用差示扫描量热法(DSC)和激光脉冲法分别测量了Nd:GGG激光晶体的比热和热扩散系数, 计算得到晶体的导热系数, 与用PPMS测量得到的导热系数相吻合. 实验结果表明: Nd:GGG激光晶体具有较大的比热和导热系数, 具有良好的热物理性能; Nd:GGG晶体的热扩散系数和导热系数随着温度的升高而减小; 计算得到晶体的德拜温度为711K.","authors":[{"authorName":"王召兵","id":"3574eb5c-8b0e-43e1-a53b-279b721e4367","originalAuthorName":"王召兵"},{"authorName":"蔡岸","id":"bc882602-6d34-4e4b-9d6c-1ab3ed5df568","originalAuthorName":"蔡岸"},{"authorName":"奚同庚","id":"a92c1db8-3fd0-4c11-bc08-9df558f13bc8","originalAuthorName":"奚同庚"},{"authorName":"张庆礼","id":"8c1bc209-3c3e-431e-b391-398c7a90dfec","originalAuthorName":"张庆礼"},{"authorName":"孙敦陆","id":"8bbb50d5-04e2-401b-b007-b853da56e6b7","originalAuthorName":"孙敦陆"},{"authorName":"殷绍唐","id":"28ee4794-af92-4729-81ff-2de002389106","originalAuthorName":"殷绍唐"}],"categoryName":"|","doi":"10.3724/SP.J.1077.2007.00170","fpage":"170","id":"19cf0038-f3d5-4367-86e2-579174b8cd35","issue":"1","journal":{"abbrevTitle":"WJCLXB","coverImgSrc":"journal/img/cover/WJCLXB.jpg","id":"62","issnPpub":"1000-324X","publisherId":"WJCLXB","title":"无机材料学报"},"keywords":[{"id":"deeeff2c-2741-4e6e-89ee-0158a5a6b5ef","keyword":"Nd:GGG晶体","originalKeyword":"Nd:GGG晶体"},{"id":"87d75e36-fcf0-44a7-8288-73f38a8b8734","keyword":" specific heat","originalKeyword":" specific heat"},{"id":"d2eb3da0-8217-41ca-a01c-d9bafe8d62d0","keyword":" thermal diffusivity","originalKeyword":" thermal diffusivity"},{"id":"c3110372-5895-441b-bf95-95493ce07d14","keyword":" thermal conductivity","originalKeyword":" thermal conductivity"}],"language":"zh","publisherId":"1000-324X_2007_1_18","title":"Nd3+:Gd3Ga5O12晶体的热物理性能研究","volume":"22","year":"2007"},{"abstractinfo":"以Si粉在Al2O3/TiO2复合溶胶中预处理形成的凝胶膜层作为扩散阻挡层抑制Cu-Si反应, 制备出Cu/Si复合材料, 研究了Cu/Si 复合材料的相组成、显微结构与性能.结果表明: Si粉预处理的Cu/Si复合材料主要由Cu和Si组成, 含有少量的Cu3Si相; 其硬度为147HV0.1, 室温热扩散系数为26.4 mm2/s. 复合材料烧结过程中Cu原子与Si原子借助膜层中的缺陷部位进行扩散, 在Cu/Si界面局部反 应形成Cu-Si化合物. 相比之下, Si粉未预处理的Cu/Si复合材料只含有Cu3Si相, 无Cu与Si残留; 其硬度高达399HV0.1, 室温热扩散 系数仅为3.0 mm2/s. 所以, Si粉表面溶胶--凝胶预处理可以有效降低Cu-Si反应程度, 保持复合材料中的Cu相与Si相, 提高导热性能.","authors":[{"authorName":"蔡辉王菲王亚平宋晓平丁秉钧","id":"7dd861e5-6808-42c7-ad11-eebbdf319267","originalAuthorName":"蔡辉王菲王亚平宋晓平丁秉钧"}],"categoryName":"|","doi":"","fpage":"1261","id":"5cfea159-cbf1-452e-ab79-e716a69c33c8","issue":"10","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"dbf7868f-0ad9-415f-b633-021d09051734","keyword":"Cu/Si复合材料","originalKeyword":"Cu/Si复合材料"},{"id":"a628fdd0-e121-43cd-86bc-b760ee61eee8","keyword":" sol-gel","originalKeyword":" sol-gel"},{"id":"c269e3ce-2d62-475b-bb8b-fd3a3b90f3af","keyword":" thermal diffusivity","originalKeyword":" thermal diffusivity"},{"id":"1409298b-74b6-449f-8d09-ec83e3285e43","keyword":" diffusion barrier","originalKeyword":" diffusion barrier"}],"language":"zh","publisherId":"0412-1961_2009_10_8","title":"Si粉表面溶胶-凝胶预处理制备Cu/Si复合材料","volume":"45","year":"2009"},{"abstractinfo":"用DSC和激光热导仪分别测定了Li2B4O7(LBO)晶体350—970K范围内的比热和630—970K范围内不同主晶轴方向的导温系数.并由此得出了导热系数和声子平均自由程.","authors":[{"authorName":"徐一斌","id":"094415b6-26fc-4dc9-9def-47b337c77221","originalAuthorName":"徐一斌"},{"authorName":"奚同庚","id":"d70c7729-2be5-4c2f-830e-9d2fe0e4d491","originalAuthorName":"奚同庚"},{"authorName":"倪鹤林","id":"926f3600-6633-4467-82fc-eb56918d7722","originalAuthorName":"倪鹤林"},{"authorName":"段炼","id":"145b8037-3536-442e-9f17-10b8371051c0","originalAuthorName":"段炼"},{"authorName":"李明华","id":"a5f1af68-aa1e-4e2f-8c6d-902512d28a6e","originalAuthorName":"李明华"},{"authorName":"蔡忠龙","id":"748f1206-4908-45b1-ac8a-003ae24313dd","originalAuthorName":"蔡忠龙"},{"authorName":"费扬","id":"a4b557ad-3caf-470c-acb6-9606337b9087","originalAuthorName":"费扬"}],"categoryName":"|","doi":"","fpage":"445","id":"7d085b09-fd99-4911-8929-9147e86bc020","issue":"5","journal":{"abbrevTitle":"CLYJXB","coverImgSrc":"journal/img/cover/CLYJXB.jpg","id":"16","issnPpub":"1005-3093","publisherId":"CLYJXB","title":"材料研究学报"},"keywords":[{"id":"10cd1691-642b-4332-9591-d45632280957","keyword":"Li_2B_4O_7晶体","originalKeyword":"Li_2B_4O_7晶体"},{"id":"277ae2c5-0528-46ec-b4a0-fd13edd14af1","keyword":" specific heat","originalKeyword":" specific heat"},{"id":"ab66b26a-ac1b-41c5-a111-eed9ea9403dc","keyword":" thermal diffusivity","originalKeyword":" thermal diffusivity"},{"id":"80619b72-d485-4a20-b135-e4260ab8c724","keyword":" thermal conductivity","originalKeyword":" thermal conductivity"},{"id":"d7b68cd0-0cda-4fdc-8360-5e9e66e9619c","keyword":" phonon mean","originalKeyword":" phonon mean"}],"language":"zh","publisherId":"1005-3093_1994_5_3","title":"Li_2B_4O_7晶体的比热、导温和导热性能","volume":"8","year":"1994"},{"abstractinfo":"The microstructure, electrical resistivity, and thermal diffusivity of nickel-zirconia cermets have been studied. Scanning electron microscopy of the fracture surfaces of samples shows that there are some small isolated nickel granules adhering to the surface of the zirconia particles. Considering such a microstructural feature of samples and the law of mixtures, an improved model for electrical and thermal conductivity is established. With this model, the experimental results-that electrical conductivity and thermal diffusivity increase with increasing nickel content-are interpreted. Moreover, the thermal diffusivity is observed to be almost linearly related to temperature.","authors":[],"categoryName":"|","doi":"","fpage":"2209","id":"84bab787-bafd-42bb-be3a-c57339ec0c3a","issue":"8","journal":{"abbrevTitle":"JOTACS","id":"0e2c67d6-98e8-477b-999d-ec8bc9a7c78a","issnPpub":"0002-7820","publisherId":"JOTACS","title":"Journal of the American Ceramic Society"},"keywords":[{"id":"7d3ea020-3fab-43f9-b30e-41bbf34b0afe","keyword":"barrier coatings;composites;microstructure;resistivity","originalKeyword":"barrier coatings;composites;microstructure;resistivity"}],"language":"en","publisherId":"0002-7820_1998_8_1","title":"Electrical and thermal conductivities of nickel-zirconia cermets","volume":"81","year":"1998"},{"abstractinfo":"This paper presents a new method to determine the equivalent oxygen diffusivities of particle dispersed composites. This method can be used to design FGM thermal barrier systems with the function of oxygen barrier. A qualitative explanation of the oxidation of nickel with the increment of zirconia contents in the composite samples can be accepted by this method. The values of equivalent oxygen diffusivities obtained with this method are in excellent agreement with those from the EMT method for the composites with ZrO2 particle dispersed phase when the volume fractions of dispersed phase are lower than 25%.","authors":[{"authorName":"Mingwei LI","id":"0fb4bede-ce91-43d2-9916-70ecb1fc2c28","originalAuthorName":"Mingwei LI"},{"authorName":" Jingchuan ZHU","id":"3bb501e8-6a2e-46a9-83c2-a12dfd17acf6","originalAuthorName":" Jingchuan ZHU"},{"authorName":" Zhongda YIN","id":"c4d9abde-0434-4c14-b054-4f18f5d71332","originalAuthorName":" Zhongda YIN"},{"authorName":" Gang ZENG","id":"a265641b-cad1-401b-9e16-1df15e1998d8","originalAuthorName":" Gang ZENG"}],"categoryName":"|","doi":"","fpage":"416","id":"3d877e55-435e-4cfa-b9f9-2065dd015eb9","issue":"5","journal":{"abbrevTitle":"CLKXJSY","coverImgSrc":"journal/img/cover/JMST.jpg","id":"11","issnPpub":"1005-0302 ","publisherId":"CLKXJSY","title":"材料科学技术(英文)"},"keywords":[{"id":"ddd080c4-71ef-4a66-9291-448da7420a55","keyword":"Equivalent oxygen diffusivity","originalKeyword":"Equivalent oxygen diffusivity"},{"id":"2f6538aa-bce5-4235-aa5c-1164a28dcaad","keyword":"null","originalKeyword":"null"},{"id":"4bd67516-f4e4-458a-aa7e-bc18a5fbaa72","keyword":"null","originalKeyword":"null"}],"language":"en","publisherId":"1005-0302_2002_5_15","title":"Analysis of Equivalent Oxygen Diffusivity of Particle Dispersed Composites","volume":"18","year":"2002"}],"totalpage":201,"totalrecord":2008}