- 作者: 沈祥榮 ; 高景海 ; 吳茂昆 等
- 作者服務機構: 清華大學材料科學中心
- 中文摘要: Thick films of YBa/sub 2/Cu/sub 4/O/sub 8/ superconductor were prepared by a spray-pyrolysis coating technique using silver strip as the substrate. The precursor solution consisted of metal nitrates dissolved in a mixture of ethandiol and water. The solution was nebulized onto the heated substrates to obtain films as-deposited. The temperature of deposition had a great effect on the morphology of the film. Sintering the films in flowing oxygen at 810.degree.C for 60 h yielded films with T/sub C/ (onset)=82.0K and T/sub C/(zero)=74.6K. Films were characterized by X-ray diffraction, scanning electron microscopy, transport and magnetic measurements.
- 英文摘要: --
- 中文關鍵字: Thick Film; Superconductor; Spray-Pyrolysis Coating; Silver; Sintering
- 英文關鍵字: 厚膜;超導體;噴霧熱解塗膜;銀;燒結