位于玻璃表面的一個Pb2+離子,只有—·頭受氧離子極化,鉛塊朝外的一頭呈一定程度的金屬性,這必然對玻璃的表面行為也發(fā)生特定作用。結晶PbO四方晶胞結構中Pbc+離子受氧離子的極化和變形是更為明顯的。在形成個PbO四方晶胞的結晶進程中,頭四個氧離子向尸b’+離子靠攏,形成兩極。鉛玻璃向鉛離子靠攏的后四個氧離子,因鉛離子的“兩極性”而與鉛離子保持比頭四個氧離子較大的距離。
For a Pb2 + ion located on the surface of glass, only the head is polarized by oxygen ions, and the head of the lead block towards the outside is metallic to a certain extent, which will inevitably have a specific effect on the surface behavior of glass. The polarization and deformation of PBC + ions in the tetragonal cell structure of crystalline PbO are more obvious. In the crystallization process of forming the first PbO tetragonal cell, the first four oxygen ions move towards the corpse B '+ ions and form two poles. The last four oxygen ions of lead glass close to lead ions keep a larger distance from lead ions than the first four oxygen ions because of the "polarity" of lead ions.
x射線結構分析數(shù)據(jù)得出前四個氧離子與鉛離子的距離為2.3A,鉛塊后四個氧離子與鉛離子的距離為4.29人,后者是前者的近兩倍,反映出Pb2+離子的極化作用和變形。二元PbO—SiO2玻璃中PbO的濃度較小時,Pb:+離廣如同Na20—SiO2玻璃中的Na+離子一樣,起網(wǎng)絡外體功能;們PbO濃度大時,顯然出現(xiàn)Pb:+/尸b:+平衡,Pb真+離子以[PbO:)結構團進入網(wǎng)絡,因而一直到濃度仍能形成玻璃。
X-ray structural analysis data show that the distance between the first four oxygen ions and lead ions is 2.3A, the distance between the last four oxygen ions and lead ions is 4.29 people, the latter is nearly twice the former, reflecting the polarization and deformation of Pb2 + ions. When the concentration of PBO in binary pbo-sio2 glass is small, the dispersion of Pb: + is the same as that of Na + ion in na20-sio2 glass, which functions as an external network; when the concentration of PBO is large, the equilibrium of Pb: + / corpse B: + appears obviously, and the real + ion of Pb enters the network as a [PbO:] structure group, so the glass can still be formed up to the highest concentration.

鉛塊作為原子序數(shù)較高的金屬,所制成的鉛板就是一種對射線有較好屏蔽作用的材料,起到類似作用的還有鉛復合板、鉛防護服、鉛帽、鉛面罩、鉛屏風、鉛眼鏡、鉛玻璃等等.在射線防護行業(yè),鉛板也稱為防輻射鉛板,射線防護鉛板,另外鉛板還可以應用在工業(yè)探傷、抗酸防腐蝕、隔音、電池、工業(yè)制品配重等方面,不同行業(yè)里稱為探傷防護鉛板、隔音鉛板、陽極鉛板等.
As a metal with higher atomic number, lead block is a kind of material with better shielding effect on ray. Lead composite plate, lead protective clothing, lead cap, lead mask, lead screen, lead glasses, lead glass and so on play a similar role. In ray protection industry, lead block is also called radiation protection lead plate, ray protection lead plate, In addition, the lead plate can also be used in industrial flaw detection, acid and corrosion resistance, sound insulation, batteries, industrial products counterweight, etc. in different industries, it is called flaw detection protection lead plate, sound insulation lead plate, anode lead plate, etc