{"number":"CN102400216A","kindCode":"A","documentType":"publication","title":{"original":"射频超导腔用单晶粒铌材制造方法","english":"Radio frequency superconducting cavity is with single die niobium material method of manufacture"},"abstract":{"original":"一种射频超导腔用单晶粒铌材制造方法，是以高熔点金属铌为原料精炼提纯，制备出晶粒尺寸Φ100mm以上，残余电阻比率RRR值300以上的铌锭，然后切出单个晶粒，采用碾压的方式轧制，再经热处理制备成单晶铌板或片；精炼提纯是采用真空电子束对高熔点金属铌进行多次熔炼提纯，生产出Φ250mm以上的铸锭，其最大晶粒直径为100－140mm，且铸锭的残余电阻比率RRR值在300以上。","english":"A single crystal grain niobium material for a radio frequency superconducting cavity is prepared by refining and purifying high-melting-point metal niobium serving as a raw material to prepare a niobium ingot with the grain size phi of more than 100mm and the residual resistance ratio RRR value of more than 300, then cutting out single crystal grains, rolling in a rolling mode, and then performing heat treatment to prepare a single crystal niobium plate or sheet; the refining and purification are to adopt vacuum electron beams to carry out multiple times of smelting and purification on the hig…"},"applicants":["Ningxia Orient Tantalum Industry Co Ltd"],"inventors":["颉维平","陈林","李明阳","高延洲","张保澄","白掌军","聂全新"],"filingDate":"2011-12-07","publicationDate":null,"grantDate":null,"verifiedWithOffice":false,"pdfUrl":"https://downloadpatent.com/pdf/CN102400216A.pdf","pages":{"en":"https://downloadpatent.com/patent/CN102400216A","zh-Hant":"https://downloadpatent.com/zh-Hant/patent/CN102400216A","ja":"https://downloadpatent.com/ja/patent/CN102400216A"}}