電(dian)導(dao)率σi和(he)電(dian)子導(dao)電(dian)的電(dian)導(dao)率σe之比(bi)σi/σe≥0.01。

具有至少一(yi)層(ceng)(ceng)其至少部分所述導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)由(you)(you)離子導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)聚合(he)(he)物(wu)的(de)(de)組(zu)(zu)合(he)(he)物(wu)賦(fu)予(yu)(yu)的(de)(de)導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)層(ceng)(ceng)的(de)(de)導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)輥(gun)包(bao)括整個導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)輥(gun)都由(you)(you)離子導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)聚合(he)(he)物(wu)賦(fu)予(yu)(yu)導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)的(de)(de)導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)橡膠(jiao)組(zu)(zu)合(he)(he)物(wu)構(gou)(gou)(gou)成(cheng)(cheng)的(de)(de)導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)輥(gun)以(yi)及由(you)(you)不同組(zu)(zu)成(cheng)(cheng)的(de)(de)多層(ceng)(ceng)構(gou)(gou)(gou)成(cheng)(cheng)的(de)(de)導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)輥(gun)，陜西純(chun)銀板材(cai)，而(er)由(you)(you)不同組(zu)(zu)成(cheng)(cheng)的(de)(de)多層(ceng)(ceng)構(gou)(gou)(gou)成(cheng)(cheng)的(de)(de)導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)輥(gun)中(zhong)的(de)(de)至少一(yi)層(ceng)(ceng)由(you)(you)至少部分導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)由(you)(you)離子導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)聚合(he)(he)物(wu)的(de)(de)組(zu)(zu)合(he)(he)物(wu)賦(fu)予(yu)(yu)的(de)(de)導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)橡膠(jiao)組(zu)(zu)合(he)(he)物(wu)構(gou)(gou)(gou)成(cheng)(cheng)，純(chun)銀板材(cai)回收，其他層(ceng)(ceng)則(ze)由(you)(you)離子導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)聚合(he)(he)物(wu)賦(fu)予(yu)(yu)導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)(xing)(xing)的(de)(de)導(dao)(dao)(dao)(dao)電(dian)(dian)(dian)(dian)(dian)(dian)層(ceng)(ceng)以(yi)外的(de)(de)橡膠(jiao)等構(gou)(gou)(gou)成(cheng)(cheng)。

背靶材料：

無(wu)氧(yang)銅(OFC)– 目(mu)前常使用的作背靶的材料是無(wu)氧(yang)銅，因(yin)為無(wu)氧(yang)銅具有(you)良好的導(dao)電性和導(dao)熱性，而且比(bi)較(jiao)容易機(ji)械加(jia)工。 如果(guo)保(bao)養(yang)適當，無(wu)氧(yang)銅背靶可以重復使用10次甚至更多。

鉬(Mo)– 在(zai)某(mou)些使(shi)用(yong)條件(jian)比較(jiao)特殊的情況下(xia)，如(ru)需要進(jin)行高溫帖合的條件(jian)下(xia)，無(wu)氧(yang)(yang)化銅(tong)容易被氧(yang)(yang)化和發生翹(qiao)曲，純銀板(ban)材報價(jia)， 所以會使(shi)用(yong)金屬(shu)鉬為(wei)背(bei)靶材料(liao)或(huo)某(mou)些靶材如(ru)陶(tao)瓷甚至某(mou)些金屬(shu)靶材的熱膨(peng)脹系數無(wu)法與(yu)無(wu)氧(yang)(yang)銅(tong)匹配，同樣也需要使(shi)用(yong)金屬(shu)鉬作為(wei)背(bei)靶材料(liao)。

根據電(dian)(dian)解質的(de)種類(lei)可分為氯化(hua)物(wu)(wu)熔鹽體系和(he)氟化(hua)物(wu)(wu)-氧化(hua)物(wu)(wu)熔鹽體系電(dian)(dian)解法，多(duo)用(yong)于(yu)制(zhi)取以鑭(lan)為主的(de)混合稀土金(jin)屬(shu)以及鑭(lan)、鐠(pu)、釹(nv)等單一稀土金(jin)屬(shu)。熔鹽電(dian)(dian)解法為連續性生產過程，產量(liang)較(jiao)大，設(she)備簡(jian)單，成(cheng)本較(jiao)低(di)，但電(dian)(dian)解槽需用(yong)耐高溫(wen)氯化(hua)物(wu)(wu)或氟化(hua)物(wu)(wu)腐蝕的(de)結構材料(liao)制(zhi)造。

還原制得含稀土99%的稀土金(jin)屬經真空(kong)精(jing)煉(包括真空(kong)蒸(zheng)餾(liu)或(huo)升華)、電(dian)傳輸、區域熔煉、熔鹽(yan)電(dian)解精(jing)煉等(deng)方(fang)法處理除去(qu)非稀土雜質后，可獲得純度(du)超過99.9%的稀土金(jin)屬產品(pin)。