Abstract:
A non-aqueous silver precursor composition has (a) a cellulosic polymer; (b) reducible silver ions at a weight ratio to the cellulosic polymer of 5: 1 to 50:1; (c) an organic solvent having a boiling point of 100°C but less than 500°C; and (d) a nitrogenous base having a pKa (acetonitrile) of 15-25 at 25°C. The Hansen parameter (δT Solvent ) of the cellulosic polymer is ≤ the Hansen parameter (δT Solvent ) of the organic solvent. The nitrogenous base is present in an equimolar amount or molar excess to the reducible silver ions. Silver nanoparticles as silver nanoparticle cellulosic polymeric composite are prepared by mixing the (a) one or more cellulosic polymers, the (c) organic solvent, and a (d) nitrogenous base. Upon heating this premix solution to a temperature of at least 75°C, a solution of reducible silver ions is added. The resulting silver nanoparticle composite is cooled, isolated, and re- dispersed in an organic solvent.
Abstract:
본 발명은 은 이온, 암모니아(NH 3 ) 및 인 화합물을 포함하는 제1 반응액 및 환원제 및 아스코르빅산을 포함하는 제2 반응액을 제조하는 반응액제조단계(S21) 및 제1 반응액 및 제2 반응액을 반응시켜 은 분말을 얻는 석출단계(S22)를 포함하는 은 염 환원단계(S2);를 포함하는 은 분말 제조방법에 관한 것으로, 인 화합물과 아스코빅산의 함량을 조절함으로써 결정자 지름이 크면서도, 잔존 유기물 함량이 낮고 높은 수축율을 가지는 은 분말 및 이를 포함하는 도전성 페이스트를 제공할 수 있다.
Abstract:
Embodiments of the present disclosure relate to a use of an alloy as a brazing alloy for an electric switch braze joint, an electric switch braze joint, an electric switch and a method of producing an electric switch braze joint. The alloy composition of said alloy consists of at least one element selected from each of group I and group II listed below, and a balance of impurities, Ag, and at least one of Cu, and Zn. Group I encompasses Cd, Mn, Ni, P, Sb, Si, Sn, Ti, and oxides thereof in a total amount of 0.5 to 45.0 wt.%. Group II encompasses Bi, Mo, Te, W, and oxides thereof, oxides of Cu and Zn in a total amount of 0.1 to 15.0 wt.%.
Abstract:
Die vorliegende Erfindung betrifft ein Sputtertarget, umfassend eine Silberlegierung, die - ein erstes Element, ausgewählt aus Indium, Zinn, Antimon und Wismut,in einer Menge von 0,01-2 Gew%,bezogen auf das Gesamtgewicht der Silberlegierung, und - 0,01-2 Gew% Titan, bezogen auf das Gesamtgewicht der Silberlegierung, enthält, und - eine mittlere Korngröße von maximal 55 μm aufweist.
Abstract:
Disclosed herein are synthetic methods of producing silver nanowires with controlled morphology, as well as purifying the same. Also disclosed are coating solutions comprising populations of silver nanowires of certain length and diameter distributions.