摘要 :
In this paper, AZO (ZnO:Al) polycrystalline thin films is produced with strong adhesion to the substrate, which deposit on the glass substrate by PECVD (plasma enhanced chemical vapor deposition) method. The film with the sheet re...
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In this paper, AZO (ZnO:Al) polycrystalline thin films is produced with strong adhesion to the substrate, which deposit on the glass substrate by PECVD (plasma enhanced chemical vapor deposition) method. The film with the sheet resistance as low as 89Ω/□, and with transmittance as high as 85% in visible light spans has been obtain. The measurements of the film structure and the experiments to examine the influence of the film electro-optical property have been shown. This AZO film fabricated by PECVD method is a useful attempt, and the results are very important to the choice of actual process of the solar cell.
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摘要 :
In this paper, AZO (ZnO:Al) polycrystalline thin films is produced with strong adhesion to the substrate, which deposit on the glass substrate by PECVD (plasma enhanced chemical vapor deposition) method. The film with the sheet
r...
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In this paper, AZO (ZnO:Al) polycrystalline thin films is produced with strong adhesion to the substrate, which deposit on the glass substrate by PECVD (plasma enhanced chemical vapor deposition) method. The film with the sheet
resistance as low as 89Ω/□, and with transmittance as high as 85% in visible light
spans has been obtain. The measurements of the film structure and the experiments to examine the influence of the film electro-optical property have been shown. This AZO film fabricated by PECVD method is a useful attempt, and the results are very important to the choice of actual process of the solar cell.
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摘要 :
UV resistance of hybrid nanocomposite films of γ-Glycidoxypropyltrimethoxysilane (GPTMS)/TiO_2-ZrO_2 prepared by Tetrabutoxytitanate, Zirconium n-tetrabutanoxide and GPTMS via sol-gel method were analyzed by observation of the fi...
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UV resistance of hybrid nanocomposite films of γ-Glycidoxypropyltrimethoxysilane (GPTMS)/TiO_2-ZrO_2 prepared by Tetrabutoxytitanate, Zirconium n-tetrabutanoxide and GPTMS via sol-gel method were analyzed by observation of the film appearance, thermal gravimetric analysis (TGA), UV-visible spectroscopy, Fourier transform infrared spectroscopy (FTIR) before and after UV irradiation. It was found that cracks on the hybrid films increase with irradiation time, total inorganic content and the content of TiO_2. The transmittance of the hybrid film increased with the increase of ZrO_2 content, which blocks part of the photo catalysis effect of TiO_2. When the ZrO_2 content increased to equal with TiO_2, UV resistance of the hybrid film approaches that of pure ZrO_2. The irregular behavior of yellow index data indicates that the deterioration in transmittance is caused by cracks mainly. FTIR results show that the hybrid film of TiO_2/ZrO_2(3/1) (T_3Z_1) still retains a stronger photo catalysis effect, after UV irradiation, the peak indicating the concentration of -OH enlarged greatly, while that of the pure ZrO_2 hybrid film remains unchanged.
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摘要 :
UV resistance of hybrid nanocomposite films of γ-Glycidoxypropyltrimethoxysilane (GPTMS)/TiO_2-ZrO_2 prepared by Tetrabutoxytitanate, Zirconium n-tetrabutanoxide and GPTMS via sol-gel method were analyzed by observation of the fi...
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UV resistance of hybrid nanocomposite films of γ-Glycidoxypropyltrimethoxysilane (GPTMS)/TiO_2-ZrO_2 prepared by Tetrabutoxytitanate, Zirconium n-tetrabutanoxide and GPTMS via sol-gel method were analyzed by observation of the film appearance, thermal gravimetric analysis (TGA), UV-visible spectroscopy, Fourier transform infrared spectroscopy (FTIR) before and after UV irradiation. It was found that cracks on the hybrid films increase with irradiation time, total inorganic content and the content of TiO_2. The transmittance of the hybrid film increased with the increase of ZrO_2 content, which blocks part of the photo catalysis effect of TiO_2. When the ZrO_2 content increased to equal with TiO_2, UV resistance of the hybrid film approaches that of pure ZrO_2. The irregular behavior of yellow index data indicates that the deterioration in transmittance is caused by cracks mainly. FTIR results show that the hybrid film of TiO_2/ZrO_2(3/1) (T_3Z_1) still retains a stronger photo catalysis effect, after UV irradiation, the peak indicating the concentration of -OH enlarged greatly, while that of the pure ZrO_2 hybrid film remains unchanged.
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摘要 :
UV resistance of hybrid nanocomposite films of γ-Glycidoxypropyltrimethoxysilane (GPTMS)/TiO_2-ZrO_2 prepared by Tetrabutoxytitanate, Zirconium n-tetrabutanoxide and GPTMS via sol-gel method were analyzed by observation of the fi...
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UV resistance of hybrid nanocomposite films of γ-Glycidoxypropyltrimethoxysilane (GPTMS)/TiO_2-ZrO_2 prepared by Tetrabutoxytitanate, Zirconium n-tetrabutanoxide and GPTMS via sol-gel method were analyzed by observation of the film appearance, thermal gravimetric analysis (TGA), UV-visible spectroscopy, Fourier transform infrared spectroscopy (FTIR) before and after UV irradiation. It was found that cracks on the hybrid films increase with irradiation time, total inorganic content and the content of TiO_2. The transmittance of the hybrid film increased with the increase of ZrO_2 content, which blocks part of the photo catalysis effect of TiO_2. When the ZrO_2 content increased to equal with TiO_2, UV resistance of the hybrid film approaches that of pure ZrO_2. The irregular behavior of yellow index data indicates that the deterioration in transmittance is caused by cracks mainly. FTIR results show that the hybrid film of TiO_2/ZrO_2(3/1) (T_3Z_1) still retains a stronger photo catalysis effect, after UV irradiation, the peak indicating the concentration of -OH enlarged greatly, while that of the pure ZrO_2 hybrid film remains unchanged.
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3-Methylthiopropionaldehyde diethyl acetal was synthesized from the reaction of 3-methylthiopropional with ethanol and triethyl orthoformate. The effecting factors including the kinds of catalyst, the mole ratio of raw materials, ...
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3-Methylthiopropionaldehyde diethyl acetal was synthesized from the reaction of 3-methylthiopropional with ethanol and triethyl orthoformate. The effecting factors including the kinds of catalyst, the mole ratio of raw materials, the amount of catalyst and the reaction time were optimized. The structure of product was characterized by gas chromatography, infrared spectroscopy, mass spectrometry, and nuclear magnetic resonance. Additionally, the mechanism of the reaction was speculated; the odor characteristics were evaluated.
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In this work, the galvanic corrosion behavior of AZ31 magnesium alloy in contact with A6N01S-T5 aluminum alloy in NaCl solution was investigated by electrochemical method, the salt immersion method, SEM. And three protection techn...
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In this work, the galvanic corrosion behavior of AZ31 magnesium alloy in contact with A6N01S-T5 aluminum alloy in NaCl solution was investigated by electrochemical method, the salt immersion method, SEM. And three protection techniques: (a) rubber gasket technique, (b) organic coating technique and (c) anodizing technique were used to inhibit the galvanic corrosion. The results of open circuit potential and polarization curve method were explained the corrosion behavior of AZ31 and A6N01S-T5.It was found that AZ31 as anode was accelerated corrosion and A6N01S-T5 as cathode was also corrode in salt immersion experiment. With the increasing of immersion time, the corrosion rate of AZ31 and A6N01S-T5 was gradually decreasing. Then, the efficacy of different anti-corrosive technologies was compared. Fluorine coating technique was an effective way to protect Mg alloy and Al alloy. It was possible to guide the anti-corrosion of magnesium alloy in mobile industry.
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摘要 :
In this work, the galvanic corrosion behavior of AZ31 magnesium alloy in contact with A6N01S-T5 aluminum alloy in NaCI solution was investigated by electrochemical method, the salt immersion method, SEM. And three protection techn...
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In this work, the galvanic corrosion behavior of AZ31 magnesium alloy in contact with A6N01S-T5 aluminum alloy in NaCI solution was investigated by electrochemical method, the salt immersion method, SEM. And three protection techniques: (a) rubber gasket technique, (b) organic coating technique and (c) anodizing technique were used to inhibit the galvanic corrosion. The results of open circuit potential and polarization curve method were explained the corrosion behavior of AZ31 and A6N01S-T5.lt was found that AZ31 as anode was accelerated corrosion and A6N01S-T5 as cathode was also corrode in salt immersion experiment. With the increasing of immersion time, the corrosion rate of AZ31 and A6N01S-T5 was gradually decreasing. Then, the efficacy of different anti-corrosive technologies was compared. Fluorine coating technique was an effective way to protect Mg alloy and Al alloy. It was possible to guide the anti-corrosion of magnesium alloy in mobile industry.
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摘要 :
In this work, the galvanic corrosion behavior of AZ31 magnesium alloy in contact with A6N01S-T5 aluminum alloy in NaCI solution was investigated by electrochemical method, the salt immersion method, SEM. And three protection techn...
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In this work, the galvanic corrosion behavior of AZ31 magnesium alloy in contact with A6N01S-T5 aluminum alloy in NaCI solution was investigated by electrochemical method, the salt immersion method, SEM. And three protection techniques: (a) rubber gasket technique, (b) organic coating technique and (c) anodizing technique were used to inhibit the galvanic corrosion. The results of open circuit potential and polarization curve method were explained the corrosion behavior of AZ31 and A6N01S-T5.lt was found that AZ31 as anode was accelerated corrosion and A6N01S-T5 as cathode was also corrode in salt immersion experiment. With the increasing of immersion time, the corrosion rate of AZ31 and A6N01S-T5 was gradually decreasing. Then, the efficacy of different anti-corrosive technologies was compared. Fluorine coating technique was an effective way to protect Mg alloy and Al alloy. It was possible to guide the anti-corrosion of magnesium alloy in mobile industry.
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Benzyl 4-ethyloctanoate was synthesized by the reaction of 4-ethyloctanoyl chloride with benzyl alcohol, and its synthesis conditions were optimized. The yield of benzyl 4-ethyloctanoate was about 93%. Based on the synthesis of be...
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Benzyl 4-ethyloctanoate was synthesized by the reaction of 4-ethyloctanoyl chloride with benzyl alcohol, and its synthesis conditions were optimized. The yield of benzyl 4-ethyloctanoate was about 93%. Based on the synthesis of benzyl 4-ethyloctanoate, phenethyl 4-ethyloctanoate, phenylpropanol 4-ethyloctanoate and cinnamyl 4-ethyloctanoate were prepared. The odor evaluations indicate that these four new ester compounds have floral and sweet note. These ester compounds have relatively high molecular weights and can be used as fixing agent to prolong the fragrance compounds lifetime.
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