 |
 |
 |
 |
 |
 |
||
 |
 |
 |
 |
 |
| 3 | 1/1 | 返回列表 |
| 查看: 975 | 回復(fù): 2 | |||
| 【懸賞金幣】回答本帖問題，作者大可樂hcl將贈(zèng)送您 30 個(gè)金幣 | |||
大可樂hcl新蟲 (初入文壇)
|
[求助]
如何通過xrd實(shí)驗(yàn)得到晶粒尺寸？xrd 實(shí)驗(yàn)中如何去除儀器展寬得到樣品的半峰寬？ 已有1人參與
|
||
|
最近在修改論文遇到了一個(gè)比較緊急的問題，在進(jìn)行xrd測(cè)試時(shí)，僅僅測(cè)試了樣品的xrd譜線。隨后用得到的數(shù)據(jù)在jade軟件上擬合處理，得出FWHM。但是期刊審稿人要求考慮儀器展寬的影響，得到樣品本身的FWHM，再計(jì)算晶粒尺寸大小。這個(gè)問題該如何處理？大佬們有推薦的參考資料嘛？ @lich666 @jackdeng 發(fā)自小木蟲IOS客戶端 |
回復(fù)此樓» 猜你喜歡
中南大學(xué)易小藝課題組誠(chéng)招2026申請(qǐng)-考核制博士生
已經(jīng)有0人回復(fù)
-
海南師范大學(xué)招收化學(xué)博士（光電功能材料課題組招收博士研究生）
已經(jīng)有11人回復(fù)
-
無機(jī)化學(xué)論文潤(rùn)色/翻譯怎么收費(fèi)?
已經(jīng)有162人回復(fù)
-
求助幾個(gè)團(tuán)簇的cif
已經(jīng)有0人回復(fù)
-
急求該反應(yīng)的詳細(xì)機(jī)理
已經(jīng)有5人回復(fù)
-
【Ei | Scopus 雙檢索】2026年智能交通與未來出行國(guó)際會(huì)議（CSTFM 2026）
已經(jīng)有0人回復(fù)
-
【EI|Scopus 雙檢索】2026年第六屆機(jī)器人與人工智能國(guó)際會(huì)議（JCRAI 2026）
已經(jīng)有0人回復(fù)
-
zotero的advanced material模板沒有更新，有人有新版的cls文件嗎
已經(jīng)有2人回復(fù)
-
【高校聯(lián)合舉辦】2026年第五屆服務(wù)機(jī)器人國(guó)際會(huì)議（ICoSR 2026）
已經(jīng)有0人回復(fù)
-
深圳大學(xué)化學(xué)與環(huán)境工程學(xué)院超分子團(tuán)隊(duì)招收2026級(jí)申請(qǐng)-考核制博士生
已經(jīng)有8人回復(fù)
rlafite
木蟲 (正式寫手)
- 應(yīng)助: 189 (高中生)
- 金幣: 9870.1
- 紅花: 28
- 沙發(fā): 1
- 帖子: 886
- 在線: 339.2小時(shí)
- 蟲號(hào): 4563202
- 注冊(cè): 2016-04-02
- 性別: GG
- 專業(yè): 同步輻射技術(shù)及其應(yīng)用
【答案】應(yīng)助回帖
感謝參與，應(yīng)助指數(shù) +1
|
Williamson-Hall Method The Williamson-Hall (W-H) method is a technique used in X-ray diffraction (XRD) analysis to estimate crystallite size and microstrain within a material. It's based on the principle that peak broadening in XRD patterns is influenced by both the size of the crystallites and the strain within the crystal lattice. By plotting broadening parameters against diffraction angle, the W-H method allows researchers to differentiate between these two contributions and obtain quantitative values for both size and strain. Here's a more detailed explanation: 1. Peak Broadening in XRD: XRD patterns show peaks at specific angles (2θ) that correspond to the crystal structure of the material. These peaks have a certain width, which is influenced by both the instrument used for measurement and the material itself. Instrumental broadening is a fixed factor for a given setup, while sample-related broadening is caused by factors like small crystallite size and lattice strain. 2. Williamson-Hall Method: The W-H method focuses on separating the size-related and strain-related broadening components. It utilizes a plot where the x-axis represents sin θ (where θ is half of the diffraction angle 2θ) and the y-axis represents βcos θ (where β is the full width at half maximum (FWHM) of the diffraction peak). This plot is based on the equation: βcos θ = (Kλ/D) + 4εsin θ. β is the FWHM of the diffraction peak. θ is the Bragg angle. K is a dimensionless shape factor (typically around 0.9). λ is the wavelength of the X-ray radiation. D is the average crystallite size. ε is the microstrain. 3. Analyzing the W-H Plot: The plot should ideally be linear. The slope of the line represents the microstrain (ε). The y-intercept of the line provides information to calculate the average crystallite size (D). By analyzing the slope and intercept, researchers can estimate both the size of the crystallites and the strain within them. In essence, the W-H method provides a relatively simple way to extract information about the microstructure of materials from XRD data, specifically by separating and quantifying the effects of crystallite size and lattice strain |
2樓2025-07-08 23:02:09
rlafite
木蟲 (正式寫手)
- 應(yīng)助: 189 (高中生)
- 金幣: 9870.1
- 紅花: 28
- 沙發(fā): 1
- 帖子: 886
- 在線: 339.2小時(shí)
- 蟲號(hào): 4563202
- 注冊(cè): 2016-04-02
- 性別: GG
- 專業(yè): 同步輻射技術(shù)及其應(yīng)用
3樓2025-07-09 00:14:59
相關(guān)版塊跳轉(zhuǎn)
我要訂閱樓主 大可樂hcl 的主題更新
| 3 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 264求調(diào)劑 +7 | 26調(diào)劑 2026-03-03 | 7/350 |
|
|---|---|---|---|---|
|
[考研] 歡迎采礦、地質(zhì)、巖土、計(jì)算機(jī)、人工智能等專業(yè)的同學(xué)報(bào)考 +8 | pin8023 2026-02-28 | 11/550 |
|
|
|
[考研] 293求調(diào)劑 +4 | 是樂渝哇 2026-03-03 | 4/200 |
|
|
|
[基金申請(qǐng)] 請(qǐng)問大家，研究風(fēng)險(xiǎn)與應(yīng)對(duì)措施那里， 大家都怎么寫呢 ？ +3 | cauasen 2026-03-02 | 3/150 |
|
|
|
[考研] 理學(xué)，工學(xué)，農(nóng)學(xué)調(diào)劑，少走彎路，這里歡迎您！ +8 | likeihood 2026-03-02 | 11/550 |
|
|
|
[考研] 298求調(diào)劑 +3 | 人間唯你是清歡 2026-03-03 | 4/200 |
|
|
|
[考研] 化工270求調(diào)劑 +10 | 什么名字qwq 2026-03-02 | 10/500 |
|
|
|
[考研] 284求調(diào)劑 +6 | 天下熯 2026-03-02 | 6/300 |
|
|
|
[考研] 268求調(diào)劑 +6 | 好運(yùn)連綿不絕 2026-03-02 | 6/300 |
|
|
|
[考研] 281電子信息求調(diào)劑 +3 | jhtfeybgj 2026-03-02 | 6/300 |
|
|
|
[考研] 080500材料科學(xué)與工程 +4 | 202114020319 2026-03-03 | 4/200 |
|
|
|
[考研] 0857調(diào)劑 +6 | 一ll半 2026-02-28 | 8/400 |
|
|
|
[考研] 清華大學(xué) 材料與化工 353分求調(diào)劑 +5 | awaystay 2026-03-02 | 6/300 |
|
|
|
[考研] 考研復(fù)試調(diào)劑，過國(guó)家線的同學(xué)都可報(bào)名 +7 | 黑！在干嘛 2026-02-28 | 8/400 |
|
|
|
[考研] 298求調(diào)劑 +7 | axyz3 2026-02-28 | 8/400 |
|
|
|
[考研] 288求調(diào)劑 +3 | 少71.8 2026-03-02 | 5/250 |
|
|
|
[考研] 290分材料工程085601求調(diào)劑 數(shù)二英一 +8 | llx0610 2026-03-02 | 9/450 |
|
|
|
[考研] 285求調(diào)劑 +9 | 滿頭大汗的學(xué)生 2026-02-28 | 9/450 |
|
|
|
[考研] 一志愿華南理工大學(xué)材料與化工326分，求調(diào)劑 +3 | wujinrui1 2026-02-28 | 3/150 |
|
|
|
[考研] 313求調(diào)劑 +3 | 水流年lc 2026-02-28 | 3/150 |
|