Al2O3-13 wt pet TiO2 coating deposited by direct current plasma spray consists of nanostructured region and micro-lamellae. Bend test shows that the ceramic coating can sustain some deformation without sudden failure....Al2O3-13 wt pet TiO2 coating deposited by direct current plasma spray consists of nanostructured region and micro-lamellae. Bend test shows that the ceramic coating can sustain some deformation without sudden failure. The deformation is achieved through the movement of nano-particles in the nanostructured region under tensile stress.展开更多
Thermal parameters of TIBr were determined using both X-ray and neutron diffraction techniques. The data was analysed by Rietveld profile refinement procedure. From the neutron diffraction data, due to weak odd-order ...Thermal parameters of TIBr were determined using both X-ray and neutron diffraction techniques. The data was analysed by Rietveld profile refinement procedure. From the neutron diffraction data, due to weak odd-order reflections, it was not possible to determine the individual thermal parameters. TheX-ray diffraction measurements yielded BT1=0.296(5) nm2 and BBr=0.162(5) nm2. The overall isotropic value, B was 0.252(7) nm2 which is in good agreement with B=0.230(8) nm2 obtained from present neutron diffraction measurements. The present values are also in good agreement with theoretical estimates obtained from the shell models.展开更多
The PVC series of macroporous sulfonic cation-exchange resins were prepared by thesulfonation of a macroporous PVC bead with concentrated sulfonic acid or chlorosulfonicacid, the resulting sulfonic resin was employed ...The PVC series of macroporous sulfonic cation-exchange resins were prepared by thesulfonation of a macroporous PVC bead with concentrated sulfonic acid or chlorosulfonicacid, the resulting sulfonic resin was employed in the investigation of catalyticesterification and softening of water The results show that the yields of esters reach60.0-84.4% according as different fatty acids and alcohols, the refractive indexes of estersobtained resemble those reported in the references basically, meanwhile, 345L softenedwaler which holds 0.06mmol/L hardness would be prepared by 1 L wet sulfonic resinreusing for 4 times. The resulting sulfonic resins would have 1.6-2.0 or 2.5-3.0mmol/gexchange capacity by using concentrated sulfonic acid or chlorosulfonic acid assulfonating agent, respectively The sulfonic resin has a macroporous structure taking themorphology with agglomerates of minutely spherical gel particles as characteristic.展开更多
文摘Al2O3-13 wt pet TiO2 coating deposited by direct current plasma spray consists of nanostructured region and micro-lamellae. Bend test shows that the ceramic coating can sustain some deformation without sudden failure. The deformation is achieved through the movement of nano-particles in the nanostructured region under tensile stress.
基金The authurs are grateful to the National Natural Science Fourdation of China for financial support(Grants No.59871056,50171071 and 59831020)special funds for the Major State Basic Research Projects of china(Grants No.G2000067104)Dr.J.Y.Wang would tike to thank the Doctoral Foundation of Liaoning Province with the No.2001102009.
文摘Thermal parameters of TIBr were determined using both X-ray and neutron diffraction techniques. The data was analysed by Rietveld profile refinement procedure. From the neutron diffraction data, due to weak odd-order reflections, it was not possible to determine the individual thermal parameters. TheX-ray diffraction measurements yielded BT1=0.296(5) nm2 and BBr=0.162(5) nm2. The overall isotropic value, B was 0.252(7) nm2 which is in good agreement with B=0.230(8) nm2 obtained from present neutron diffraction measurements. The present values are also in good agreement with theoretical estimates obtained from the shell models.
文摘The PVC series of macroporous sulfonic cation-exchange resins were prepared by thesulfonation of a macroporous PVC bead with concentrated sulfonic acid or chlorosulfonicacid, the resulting sulfonic resin was employed in the investigation of catalyticesterification and softening of water The results show that the yields of esters reach60.0-84.4% according as different fatty acids and alcohols, the refractive indexes of estersobtained resemble those reported in the references basically, meanwhile, 345L softenedwaler which holds 0.06mmol/L hardness would be prepared by 1 L wet sulfonic resinreusing for 4 times. The resulting sulfonic resins would have 1.6-2.0 or 2.5-3.0mmol/gexchange capacity by using concentrated sulfonic acid or chlorosulfonic acid assulfonating agent, respectively The sulfonic resin has a macroporous structure taking themorphology with agglomerates of minutely spherical gel particles as characteristic.
