Glass powder and method of manufacturing the same

Abstract

Provided are a glass powder represented as aLi 2 O-bK 2 O-cBaO-dB 2 O 3 -eSiO 2 wherein a+b+c+d+e= 1 , and 0.01 ≦a≦ 0.1, 0.01 ≦b≦ 0.1, 0.01 ≦c≦ 0.1, 0.05 ≦d≦ 0.3 , and 0.3 ≦e≦ 0.7 are satisfied in terms of mol %, a method of manufacturing the same, and a multi-layered ceramic material using the same. Therefore, a nano glass powder having an average particle size of 100 nm or less and uniform particle size distribution can be manufactured using liquid phase deposition, specifically, a sol-gel method. In addition, the glass powder can be used as sintering additives to decrease a sintering temperature by about 100 ° C. in comparison with conventional glass upon manufacture of a ceramic material such as MLCC and MLCI, which can be sintered at a low temperature, contributing to improvement of dielectric capacity and inductance capacity of the parts and increasing quality coefficient.

1 - 2 . (canceled) 
     
     
         3 . A method of manufacturing a glass powder comprising:
 dissolving starting materials of Li, K, Ba and B in a solvent;   additionally inputting a starting material of Si to react the starting materials;   manufacturing a solution having an adjusted pH in a separate vessel; and   adding the reacted solution to the pH-adjusted solution to manufacture a nano glass,   wherein the glass powder represented as the following Formula 1:
   aLi 2 O-bK 2 O-cBaO-dB 2 O 3 -eSiO 2   Formula 1
 
   here, a+b+c+d+e=1, and 0.01a≦0.1, 0.01≦b≦0.1, 0.01≦c≦0.1, 0.05≦d≦0.3, and 0.3≦e≦0.7 are satisfied in terms of mol %.   
     
     
         4 . The method according to  claim 3 , wherein the glass powder is manufactured through a sol-gel method. 
     
     
         5 . The method according to  claim 3 , wherein the starting materials of Li and K are at least one salt selected from the group consisting of hydroxide, acetate, nitrate, chloride, alkoxide, oxide, and carbonate. 
     
     
         6 . The method according to  claim 3 , wherein the starting material of Ba is at least one salt selected from the group consisting of acetate, chloride, hydroxide octahydrate, and nitrate. 
     
     
         7 . The method according to  claim 3 , wherein the starting material of B is boric acid or trimethyl borate. 
     
     
         8 . The method according to  claim 3 , wherein the starting material of Si is tetraethyl orthosilicate (TEOS). 
     
     
         9 . The method according to  claim 3 , wherein the pH is 3 to 13. 
     
     
         10 . The method according to  claim 3 , wherein the solvent is at least one selected from the group consisting of distilled water, acidic solvent, and alcohols. 
     
     
         11 . The method according to  claim 10 , wherein the distilled water, acidic solvent and alcohols are mixed at a ratio of 0.7:0.0:0.5 to 1.3:0.2:1.3. 
     
     
         12 . The method according to  claim 3 , wherein the pH-adjusted solvent comprises an alcohol-based solvent and a basic catalyst. 
     
     
         13 . The method according to  claim 12 , wherein the basic catalyst is at least one selected from the group consisting of ammonia and urea. 
     
     
         14 . The method according to  claim 12 , wherein a mixing ratio of the alcohol-based solvent and basic catalyst is a volume ratio of 10:1 to 1:1. 
     
     
         15 - 18 . (canceled)