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 Wysłany: Nie 20:33, 28 Lis 2010 Temat postu: air jordan shoes cheap Preparation of nano-titaniu |
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Preparation of nano-titanium dioxide and organic sol electrorheological properties
highresolutiontransmissionelectronmicroscopy (HRTEM). TheresultsindicatedthatdetonationsootwithnanosizedTiO, particleswascomposedoftherutileandanatasephasesinadditiontosomeimpurities, suchastheCandTi7Ol3, andthattheaverageparticlesizeofthenanosizedTiO2particlesis (3O ± 10) nm. Afterbeingannealedat500. Cfor1hinair, detonationsootshowedonlynanosizedTiO2particleswiththeruffleandanatasephasein9; 1. Tosomeextenttheaverageparticlesizeoftheas-preparedTiO2grewupslightlyafterthermaltreatment. Keywords: detonaitonmethod; precipitationmethod; photocatalyst; nanosizedTiOz (pick No. 1843 on) StudyonelectricalandelectrothermalpropertiesofnanocarbonblackcementmortarWANGXiao-ying, SUNMing-qing,[link widoczny dla zalogowanych], HOUZuo-fu,[link widoczny dla zalogowanych], L0NGXi, L1Zhuo-qiu (Dept.ofEngineeringStructuresandMechanics, WuhanUniversityofTechnology,[link widoczny dla zalogowanych], Wuhan430070, China) Abstract: Researchofthenanocarbonblackcementmortarelectricalandelectrothermalproperties. Experimentshowthatwhenthecontentofcarbonblacklessthan2.5,[link widoczny dla zalogowanych], thehigherquantity, thelowerresistivity; whenthecontentis2.5, theresistivityattain102 ・ cm; andmorethan2.5, theresistivitydeclinetrendtosteady. Asthecontentisabout5, theresistivityremainsteadynesasicallyandroundabout30 ~ 40 ・ cm. Comparetothegraphite. astheconductiveadditivetogetconcretewhichhaveelectrothermalfunctionapplied, thecarbonblackneedsmaller. Asthecontentmorethan1%,[link widoczny dla zalogowanych], theagehave1itterinfluenceontheresistivityanditwillbesteadyrelative. Thecarbonblackcementmortaralsohavesteadyelectricpowerandgoodreiteration. Keywords: nanocarbonblack; electrical; electrothermaleffect; resistivity
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