| 查看: 1039 | 回复: 5 | ||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | ||
YILUK金虫 (小有名气)
|
[求助]
求一个SiO2-Al2O3-P2O5体系的三角形玻璃形成区域相图 已有1人参与
|
|
|
求助木虫上的各位大神： 现在老板让设计一个SiO2-Al2O3-P2O5体系的玻璃配方，于是开始找这个体系的玻璃生成相图， 怎么也找不到，结合其他相图只能推出两个点。。求大神帮忙找找，文献中的也行，高手推导出的也行，金币奉上！ |
回复此楼» 猜你喜欢
301求调剂
已经有3人回复
-
一志愿211，化学学硕，310分，本科重点双非，求调剂
已经有28人回复
-
材料085601调剂
已经有17人回复
-
一志愿0703化学招61最终排名62化学求调剂
已经有23人回复
-
一志愿211，化学310分，本科重点双非，求调剂
已经有17人回复
-
调剂 化学 307
已经有14人回复
-
一志愿211，化学学硕，310分，本科重点双非，求调剂
已经有20人回复
-
296求调剂
已经有13人回复
-
314求调剂
已经有23人回复
-
一志愿沪9，326生物学求相关专业调剂
已经有4人回复
wydmhy
至尊木虫 (职业作家)
- 应助: 161 (高中生)
- 金币: 10557.3
- 散金: 235
- 红花: 41
- 帖子: 4053
- 在线: 719.1小时
- 虫号: 903420
- 注册: 2009-11-15
- 性别: GG
- 专业: 无机非金属类光电信息与功
5楼2016-06-27 14:12:22
wydmhy
至尊木虫 (职业作家)
- 应助: 161 (高中生)
- 金币: 10557.3
- 散金: 235
- 红花: 41
- 帖子: 4053
- 在线: 719.1小时
- 虫号: 903420
- 注册: 2009-11-15
- 性别: GG
- 专业: 无机非金属类光电信息与功
【答案】应助回帖
★ ★ ★ ★ ★
感谢参与，应助指数 +1
YILUK(bible2代发): 金币+5, OK 2016-06-24 19:38:27
感谢参与，应助指数 +1
YILUK(bible2代发): 金币+5, OK 2016-06-24 19:38:27
|
Al2O3-SiO2-P2O5 Fig. 93-156—System P2O5-SiO2-Al2O3. Solid state phase relationships in air from 900¡ã-1100¡ãC. Mul = Al6Si2O13; Trd = tridymite (SiO2). R. Umlauf, H. Von Platen, A. A. Forughi, and P. Bartha, Ber. Dtsch. Keram. Ges., 57 [4-5] 83-85 (1980). An unspecified number of compositions were prepared, using unspecified raw materials. Samples were annealed at 300¡ã, 600¡ã, 700¡ã, 900¡ã, and 1100¡ãC for periods up to 25 d. Loss of P2O5 was avoided through the use of double-crimped Au-Pt tubes to contain all mixtures. Phase identification was performed using Guinier X-ray diffraction, with CuKa radiation and Si as internal standard. The ternary compound was found to be formed reproducibly at all temperatures above 700¡ãC, with some indication of phase formation below that temperature. The chemical formula Si2AlP3O13 was determined using an energy-dispersive microprobe system (average of 45 measurements on 4 specimens). The compound exists in two stable crystallographic modifications; a third modification is obtained irreproducibly on grinding the crystal. Both stable modifications exhibit hexagonal prismatic growth habit and have negative optical extinction. Indexed X-ray data for the stable modifications are given, determined from single-crystal precession X-ray diffraction (MoKa radiation) from selected fragments of both crystal types. The high-temperature phase is said to be trigonal, space group P321, P3m1, or P3¡￥m1, with a = 3.212 nm and c = 0.886 nm, but powder data can be indexed using a hexagonal pseudocell with a = 0.803 nm and c = 0.886 nm. The stable, low-temperature phase is hexagonal, space group P6322, with a = 0.801 nm and c = 0.920 nm. Figure 364 shows a compound, Si2P2O9, but Ref. 1 confirms the composition as Si5P6O25. The principal ternary phase assemblages indicated are as determined by Forughi.2 Tie-lines in two-phase regions have been added for clarity by the editors. 1. A. E. Mal'shikov, Zh. Neorg. Khim., 32 [10] 2370-2374 (1987); Russ. J. Inorg. Chem. (Engl. Transl.), 32 [10] 1383-1385 (1987). 2. A. A. Forughi; "Phase Relations in Al2O3-P2O5 and SiO2-Al2O3-P2O5 Systems"; Ph.D. Dissertation. Johannes-Gutenberg-University Mainz, Mainz, Germany, 1974. A.E.M. |
YILUK2楼2016-06-24 17:01:50
YILUK
金虫 (小有名气)
- 应助: 3 (幼儿园)
- 金币: 1071.3
- 散金: 2
- 红花: 1
- 帖子: 139
- 在线: 249.7小时
- 虫号: 664530
- 注册: 2008-11-29
- 性别: GG
- 专业: 放射医学
3楼2016-06-27 11:24:37
YILUK
金虫 (小有名气)
- 应助: 3 (幼儿园)
- 金币: 1071.3
- 散金: 2
- 红花: 1
- 帖子: 139
- 在线: 249.7小时
- 虫号: 664530
- 注册: 2008-11-29
- 性别: GG
- 专业: 放射医学
4楼2016-06-27 11:30:59
