文章信息/Info

Title:

Applications of Synchrotron Radiation Based Techniques in Nuclear Materials Research

文章編號(hào):

16743962(2021)02012010

作者:

李時(shí)磊; 王沿東; 王勝杰; 徐寧; 李陽

（北京科技大學(xué) 新金屬材料國(guó)家重點(diǎn)實(shí)驗(yàn)室，北京 100083）

Author(s):

LI Shilei; WANG Yandong; WANG Shengjie; XU Ning; LI Yang

(State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China)

關(guān)鍵詞:

同步輻射; 核材料; X射線衍射; 小角X射線散射; X射線成像

Keywords:

synchrotron radiation;  nuclear materials;  X-ray diffraction;  small angle X-ray scattering;  X-ray imaging

分類號(hào):

O434.19

DOI:

10.7502/j.issn.1674-3962.202009023

文獻(xiàn)標(biāo)志碼:

A

摘要:

先進(jìn)同步輻射光源具有高通量、高相干性、高脈沖重復(fù)率等優(yōu)點(diǎn)，將基于其的X射線衍射、小角散射、成像、譜學(xué)等表征方法與原位環(huán)境（如溫度場(chǎng)、應(yīng)力場(chǎng)、氣氛、溶液介質(zhì)等）實(shí)驗(yàn)裝置配合，可為系統(tǒng)表征與評(píng)價(jià)核能系統(tǒng)用材料與部件的服役行為和損傷機(jī)制提供重要技術(shù)手段。核材料在高溫/應(yīng)力/介質(zhì)/中子輻照等復(fù)雜多場(chǎng)環(huán)境下的服役損傷行為長(zhǎng)期以來一直是學(xué)術(shù)界和工業(yè)界關(guān)注的焦點(diǎn)，其中多場(chǎng)耦合作用下材料微觀結(jié)構(gòu)演化、微觀力學(xué)行為及微觀損傷機(jī)制是亟需解決的關(guān)鍵科學(xué)問題。分別從同步輻射高能X射線衍射、微束衍射技術(shù)、小角散射技術(shù)、成像技術(shù)、譜學(xué)技術(shù)等幾個(gè)方面，介紹了同步輻射表征技術(shù)在典型核材料研究中的應(yīng)用。最后基于國(guó)內(nèi)外在核材料領(lǐng)域的研究進(jìn)展，展望了同步輻射技術(shù)在核材料研究中的未來發(fā)展方向。

Abstract:

The advanced synchrotron radiation source, with the advantages of high flux, high coherence, high pulse repetition rate, etc., provides characterization methods such as X-ray diffraction, small-angle scattering, imaging, and spectroscopy. The in-situ environmental (such as temperature field, stress field, gas, solution medium, etc.) equipment combined with these characterization methods are important technical means for the measurement and evaluation of the service behavior and damage mechanism of materials and components used in nuclear energy systems. The damage behavior of nuclear materials under complex multi�瞗ield environments such as temperature/stress/medium/neutron irradiation has long been the focus of the academic and industrial circles. The microstructure evolution, micromechanical behavior and damage mechanism of nuclear materials under the coupling action of multiple fields are the key scientific issues. This paper reviews the application of synchrotron radiation characterization techniques in the research of typical nuclear materials from several aspects, such as high�瞖nergy X-ray diffraction, microbeam diffraction, small-angle scattering, imaging/tomography, and spectroscopy. Finally, the future development directions of synchrotron radiation technology in nuclear materials research are prospected.