| 查看: 181 | 回复: 1 | |||
| 当前主题已经存档。 | |||
lzb8628491铜虫 (小有名气)
|
[交流]
咨询xrd测量金属玻璃自由体积结果分享
|
||
|
以下是回信和我的咨询信，作者很好，马上就给我回了 Dear Lu, Our measurements are done in transmission with no scan stepts. The scattering entire 2-theta angular range is recorded at the same time (1 second to 30 seconds). If you use a lab source, you should work with light elements otherwise absorption will reduce your irrediated volume too much. For a lab source, I think one scan (0.025 degree steps), should take 8 hours but that depends a little on your machine. For sure, one-hour acquisitions are usually not enough. Good luck ARY > >>Dear Professor: >> I am a student of Lanzhou University, China. I has read some of >> your >> papers,which are about the measureement of free volume by X-ray >> diffraction. I noticed that the change of angular position of the >> first diffracted intensity maximum is very small after deformation or >> annealing than as cast sample, the change of 2 theta are about 0.04 >> degree. >> 1. Using high-energy, high-intensity synchrotron light, you has >> got >> significative data. could you tell me which scan step did you use for >> abtaining significative data? >> 2. we have a ordinary x-ray diffraction (not synchrotron, the >> smallest > scan >> step is 0.01 degree (2theta)). Is the diffraction suited for measuring >> free > volume >> of metallic glasses at as cast, deformation, and annealing states? >> Thank you for attention of my questions. >> Kind regards! >> yours Lu >> |
回复此楼» 猜你喜欢
广西大学-广州大学招聘博士后 欢迎广大优秀人才！！！
已经有11人回复
-
闲聊
已经有3人回复
-
江苏省自然基金 什么时候出结果
已经有4人回复
-
如何查询2026年获批项目名称？
已经有3人回复
-
两块石头
已经有10人回复
-
科研人应该花精力去思考如何解决问题，而不是去凝练问题
已经有19人回复
-
售SCI一区T0P文章，我:8O.55.1.O.54,科目全,可伽急
已经有15人回复
-
面上没中，邀请各位路过的虫友分析一下分数
已经有13人回复
-
初秋的晨风
已经有6人回复
-
Ei源刊怎么投
已经有4人回复
lzb8628491
铜虫 (小有名气)
- 应助: 0 (幼儿园)
- 金币: 17.6
- 散金: 38
- 帖子: 113
- 在线: 56.9小时
- 虫号: 393794
- 注册: 2007-06-06
- 专业: 碳素材料与超硬材料
2楼2007-07-04 12:12:54