| 查看: 170 | 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
今天系统多次维护，明天很可能放榜！
已经有5人回复
-
欢迎发来filecode的Mz6后的代码验证其规律
已经有74人回复
-
岩土工程学报什么时候才能终审完呐
已经有4人回复
-
时间戳又变了8-15
已经有25人回复
-
2027广东省杰青
已经有6人回复
-
快农历七夕节了，轻松一下，男人悄悄话，女施主请不要进来。
已经有3人回复
-
哪位老哥知道今年的国自然具体哪一天放榜？
已经有9人回复
-
咱们一起用铁证分析2026国家社科基金中标与否
已经有26人回复
-
我的国基提前知道中了，可是同事的操作让我实在接受不了，怎么会有这样的人
已经有16人回复
-
有时候，自然基金真的不能太认真 （我的申报经验）
已经有12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
