CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG最新文献

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皮秒激光两步扫描实现玻璃快速密封焊接 皮秒激光两步扫描实现玻璃快速密封焊接
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230602
陈聪 Chen Cong, 廖洋 Liao Yang, 郭向朝 Guo Xiangzhao, 崔新强 Cui XinQiang, 冯吉军 Feng Jijun, 郑凯 Zheng Kai, 刘科 Liu Ke, 谢少明 Xie Shaomin, 彭宇杰 Peng Yujie, 冷雨欣 Leng Yuxin
{"title":"皮秒激光两步扫描实现玻璃快速密封焊接","authors":"陈聪 Chen Cong, 廖洋 Liao Yang, 郭向朝 Guo Xiangzhao, 崔新强 Cui XinQiang, 冯吉军 Feng Jijun, 郑凯 Zheng Kai, 刘科 Liu Ke, 谢少明 Xie Shaomin, 彭宇杰 Peng Yujie, 冷雨欣 Leng Yuxin","doi":"10.3788/cjl230602","DOIUrl":"https://doi.org/10.3788/cjl230602","url":null,"abstract":"为实现石英玻璃的快速密封焊接,本文提出了一种利用皮秒激光进行两步扫描的焊接方法,首先利用较高能量脉冲快速扫描,在玻璃界面形成初步焊接,再利用较低能量脉冲慢速扫描,扩大熔池体积。在焊接强度和密封性能等方面,将两步扫描焊接与传统单步扫描焊接进行了对比,结果表明:两步扫描焊接样品具有更高的焊接强度(平均剪切强度达到了45 MPa),同时可实现更好的密封效果。为了探究不同间隙宽度下玻璃焊接强度的变化,通过滴加含不同直径SiO2微球的分散液增大玻璃间隙,结果发现两步扫描方法可以对间隙超过27 μm的石英玻璃进行一定强度的焊接(剪切强度为2.4 MPa)。基于此方法,成功实现了石英玻璃的高强度快速密封焊接,并利用单一皮秒激光扫描平台演示了微通道的快速制备和封装。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135662133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
激光粉末床熔融增材制造未熔合气孔缺陷形成机理研究 激光粉末床熔融增材制造未熔合气孔缺陷形成机理研究
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230568
石岩 Shi Yan, 魏登松 Wei Dengsong
{"title":"激光粉末床熔融增材制造未熔合气孔缺陷形成机理研究","authors":"石岩 Shi Yan, 魏登松 Wei Dengsong","doi":"10.3788/cjl230568","DOIUrl":"https://doi.org/10.3788/cjl230568","url":null,"abstract":"目前,基于激光粉末床熔融(LPBF)增材制造的成形件会不可避免地存在一定程度的气孔缺陷,为探究该缺陷的形成机理,以AlSi10Mg为研究对象,采用离散元法(DEM)和计算流体力学(CFD)对激光增材制造过程中单层和多层成形的熔池流场进行了数值模拟。通过调节激光功率和扫描间距,分析了加工参数对LPBF单道、多道和多层缺陷的影响机制。结果表明:低功率时,熔道易产生球化、扭曲、气孔等缺陷,而高功率时飞溅现象加剧;对于多道成形,扫描间距过大会使搭接区形成气孔缺陷,扫描间距过小将加剧积热效应。对于层间转角为67°、采用棋盘格扫描策略的多层打印,单棋盘格熔道两端的高度不同和道间沟壑是影响铺粉表面粗糙度的主要因素,凹凸不平的铺粉表面会影响铺粉层的厚度均一性,在激光能量不足时导致层间产生气孔,进而影响层间结合质量;适宜的能量输入有助于形成粗糙度小的铺粉平面和足够的熔深,减少层间气孔缺陷。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135662323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
高能强场太赫兹源与铌酸锂晶体 高能强场太赫兹源与铌酸锂晶体
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230780
韩文斌 Han Wenbin, 孙德辉 Sun Dehui, 王蒙 Wang Meng, 李陈哲 Li Chenzhe, 刘首廷 Liu Shouting, 刘宏 Liu Hong
{"title":"高能强场太赫兹源与铌酸锂晶体","authors":"韩文斌 Han Wenbin, 孙德辉 Sun Dehui, 王蒙 Wang Meng, 李陈哲 Li Chenzhe, 刘首廷 Liu Shouting, 刘宏 Liu Hong","doi":"10.3788/cjl230780","DOIUrl":"https://doi.org/10.3788/cjl230780","url":null,"abstract":"高能强场太赫兹(THz)源在国土安全、通信雷达、生物医疗等领域有重要的应用价值。然而,一直以来THz源的辐射输出能量小、转化效率低,阻碍了强场THz前沿科学与应用研究的发展。基于铌酸锂倾斜波前技术,飞秒激光抽运铌酸锂晶体有望实现能量更高的极端强场THz输出。从材料角度阐述了铌酸锂强场THz源产出的研究进展,总结了强场THz源对铌酸锂晶体的性能要求:均匀掺镁铌酸锂、低浓度掺镁近化学计量比铌酸锂、大口径铌酸锂晶体。最后,介绍了近年来周期极化铌酸锂和铌酸锂单晶薄膜等微纳结构的调控在THz源领域的应用研究。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135104985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
温稠密金的太赫兹时域光谱实验 温稠密金的太赫兹时域光谱实验
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230791
孙旭 Sun Xu, 吴海忠 Wu Haizhong, 王小伟 Wang Xiaowei, 吕治辉 Zhihui Lü, 张栋文 Zhang Dongwen, 刘东晓 Liu Dongxiao, 范伟 Fan Wei, 粟敬钦 Su Jingqin, 周维民 Zhou Weimin, 谷渝秋 Gu Yuqiu, 赵增秀 Zhao Zengxiu, 袁建民 Yuan Jianmin
{"title":"温稠密金的太赫兹时域光谱实验","authors":"孙旭 Sun Xu, 吴海忠 Wu Haizhong, 王小伟 Wang Xiaowei, 吕治辉 Zhihui Lü, 张栋文 Zhang Dongwen, 刘东晓 Liu Dongxiao, 范伟 Fan Wei, 粟敬钦 Su Jingqin, 周维民 Zhou Weimin, 谷渝秋 Gu Yuqiu, 赵增秀 Zhao Zengxiu, 袁建民 Yuan Jianmin","doi":"10.3788/cjl230791","DOIUrl":"https://doi.org/10.3788/cjl230791","url":null,"abstract":"太赫兹波为高能量密度物质提供了独一无二的诊断手段,但在大型高能量密度装置上实现极端条件下物质状态的太赫兹时域光谱诊断技术仍面临巨大挑战。本文报道了在低重复频率、高能量激光装置上开展的光脉冲泵浦-太赫兹探测实验。利用钛宝石飞秒激光器输出焦耳量级的单发脉冲,单发脉冲经磷酸二氢钾倍频后加热30 nm厚自支撑金膜,产生均匀的温稠密金等离子体;同时,将大孔径铌酸锂晶片通过光整流产生的单脉冲能量为7 μJ的太赫兹脉冲作为探测光,利用金属阶梯镜实现了单发太赫兹波形探测,获得了温稠密金在太赫兹波段的时间分辨的电导率数据,为检验双温模型中电子-离子耦合系数等关键参数的准确性提供了新基准。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135105290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
基于太赫兹超材料的牛血清白蛋白传感器研究 基于太赫兹超材料的牛血清白蛋白传感器研究
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230881
郑卓锐 Zheng Zhuorui, 钟慧 Zhong Hui, 聂勇潇 Nie Yongxiao, 林婷 Lin Ting, 方依霏 Fang Yifei, 宋立伟 Song Liwei, 田野 Tian Ye
{"title":"基于太赫兹超材料的牛血清白蛋白传感器研究","authors":"郑卓锐 Zheng Zhuorui, 钟慧 Zhong Hui, 聂勇潇 Nie Yongxiao, 林婷 Lin Ting, 方依霏 Fang Yifei, 宋立伟 Song Liwei, 田野 Tian Ye","doi":"10.3788/cjl230881","DOIUrl":"https://doi.org/10.3788/cjl230881","url":null,"abstract":"太赫兹波具有非电离、对非极性物质穿透性高、对氢键等弱共振敏感等特性,是生物、材料、化学等领域的重要研究对象。蛋白质、糖类等生物大分子的转动频率和基团的振动频率以及分子之间弱相互作用的特征频率恰好处于太赫兹频段,这赋予了太赫兹光谱技术在生物医学领域中极大的发展潜力。然而,由于待测物尺寸一般小于太赫兹波长(0.03~3.00 mm),微量的待测物难以引起谱线的改变,太赫兹光谱检测灵敏度较低。能够灵活操控电磁波特性的超材料为解决上述问题提供了新的思路,通过设计不同的结构及参数,能够得到谐振频率位于太赫兹波段的超材料,微量的待测物即可引起谱线的明显变化。基于共振型太赫兹超材料构建了牛血清白蛋白(BSA)传感器,实验结果表明,当BSA溶液的体积质量为2.0~8.0 mg/mL时,传感器共振频率偏移量与溶液浓度呈线性关系,传感器的最低浓度检测限为0.3 mg/mL。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135105643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
GNPs含量对激光选区熔化成形GNPs/AlSi10Mg复合材料组织及强化机理的影响 GNPs含量对激光选区熔化成形GNPs/AlSi10Mg复合材料组织及强化机理的影响
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230838
吴利芸 Wu Liyun, 赵占勇 Zhao Zhanyong, 白培康 Bai Peikang
{"title":"GNPs含量对激光选区熔化成形GNPs/AlSi10Mg复合材料组织及强化机理的影响","authors":"吴利芸 Wu Liyun, 赵占勇 Zhao Zhanyong, 白培康 Bai Peikang","doi":"10.3788/cjl230838","DOIUrl":"https://doi.org/10.3788/cjl230838","url":null,"abstract":"激光选区熔化技术相比传统材料加工技术具有成形速度快且能够成形复杂零件的优势。采用球磨法制备了GNPs/AlSi10Mg复合粉末,采用激光选区熔化技术成形了石墨烯纳米片(GNPs)含量不同的GNPs/AlSi10Mg复合材料,GNPs的质量分数分别为0、0.1%、0.3%、0.5%。研究了不同GNPs含量对复合材料微观组织和力学性能的影响,揭示了GNPs强化AlSi10Mg的机理。结果表明:激光选区熔化成形的AlSi10Mg合金的择优取向为〈100〉;GNPs的添加不会改变GNPs/AlSi10Mg复合材料的择优取向,但会降低复合材料中大角度晶界的比例。不同含量的GNPs/AlSi10Mg复合材料的相组成均为α-Al相和共晶硅相;随着GNPs含量增加,复合材料的硬度呈增大趋势,最大为168 HV;随着GNPs含量增加,缺陷增加,复合材料的极限抗拉强度、屈服强度和延伸率由0.1%GNPs/AlSi10Mg的(417±4)MPa、(254±5)MPa和(8.4±0.14)%降低到0.5%GNPs/AlSi10Mg的(224±6)MPa、(150±3)MPa和(4.0±0.45)%;激光选区熔化成形0.1%GNPs/AlSi10Mg复合材料的强化主要是由热错配强化和载荷转移强化协同作用控制的。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135105644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
抗血栓药物拜瑞妥的远红外光谱研究 抗血栓药物拜瑞妥的远红外光谱研究
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230523
魏小柯 Wei Xiaoke, 吴旭 Wu Xu, 陆小森 Lu Xiaosen, 王俊杰 Wang Junjie, 李婧楠 Li Jingnan, 杨颜锶 Yang Yansi, 褚欣博 Chu Xinbo, 王奇亮 Wang Qiliang, 金钻明 Jin Zuanming, 彭滟 Peng Yan
{"title":"抗血栓药物拜瑞妥的远红外光谱研究","authors":"魏小柯 Wei Xiaoke, 吴旭 Wu Xu, 陆小森 Lu Xiaosen, 王俊杰 Wang Junjie, 李婧楠 Li Jingnan, 杨颜锶 Yang Yansi, 褚欣博 Chu Xinbo, 王奇亮 Wang Qiliang, 金钻明 Jin Zuanming, 彭滟 Peng Yan","doi":"10.3788/cjl230523","DOIUrl":"https://doi.org/10.3788/cjl230523","url":null,"abstract":"以治疗血栓的新型药物拜瑞妥为例,利用远红外光谱,实现了药物快速准确的定量分析。首先,基于密度泛函理论进行理论仿真,分析了拜瑞妥基团结构的振动模式,预测其在0~100 cm-1波数范围内存在多种共振吸收。接着,利用远红外光谱仪对拜瑞妥进行检测,获得了与理论仿真结果高度一致的实验谱图,明确了拜瑞妥在远红外频段的特征吸收峰。最后,对不同质量拜瑞妥样品进行了测试,研究了拜瑞妥的特征吸收峰强度与其质量之间的线性关系,以多个特征峰为指标进行联合分析,实现了拜瑞妥药物含量的快速定量分析。研究结果有助于推动相关抗血栓药物的快速检测手段的发展。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135105677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
铌酸锂强场太赫兹非线性时域光谱系统 铌酸锂强场太赫兹非线性时域光谱系统
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230435
才家华 Cai Jiahua, 张保龙 Zhang Baolong, 耿春艳 Geng Chunyan, 郝思博 Hao Sibo, 陈赛 Chen Sai, 吴晓君 Wu Xiaojun
{"title":"铌酸锂强场太赫兹非线性时域光谱系统","authors":"才家华 Cai Jiahua, 张保龙 Zhang Baolong, 耿春艳 Geng Chunyan, 郝思博 Hao Sibo, 陈赛 Chen Sai, 吴晓君 Wu Xiaojun","doi":"10.3788/cjl230435","DOIUrl":"https://doi.org/10.3788/cjl230435","url":null,"abstract":"强场太赫兹(THz)时域光谱技术在强场THz科学技术与应用中具有重要作用,材料、物理、化学、生物等领域诸多涉及强场THz与物质强非线性相互作用的研究都离不开强场THz时域光谱技术。然而,受限于高效率、高光束质量、高稳定性、高重复频率强场THz辐射源的性能,强场THz时域非线性光谱技术发展缓慢。针对强场THz非线性光谱技术及其潜在应用中存在的难题与挑战,在商用kHz钛宝石激光器的驱动下,笔者设计并实现了一套基于铌酸锂倾斜波前技术产生强场THz的高度集成化时域光谱系统。在3 mJ激光能量泵浦下,利用该系统在室温下实现了单脉冲能量为6.5 μJ、峰值场强约为350 kV/cm的THz强场产生,该系统具备强场THz非线性光谱测试、THz泵浦‑THz探测、光泵浦‑THz探测、THz发射谱测量等多种超快时间分辨测量功能,是研究强场THz非线性效应的有效实验手段。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135105933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
基于强场太赫兹脉冲的扫描隧道显微镜 基于强场太赫兹脉冲的扫描隧道显微镜
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230787
谷建强 Gu Jianqiang, 安有文 An Youwen
{"title":"基于强场太赫兹脉冲的扫描隧道显微镜","authors":"谷建强 Gu Jianqiang, 安有文 An Youwen","doi":"10.3788/cjl230787","DOIUrl":"https://doi.org/10.3788/cjl230787","url":null,"abstract":"纳米尺度上的超快动力学研究对现代纳米技术的应用具有重要的指导意义。太赫兹辐射在电磁波谱中独特的位置使其被广泛应用于各种物性的研究。然而衍射极限的存在限制了太赫兹辐射在纳米和亚纳米尺度上的应用。为了应对这一挑战,太赫兹扫描隧道显微镜(THz-STM)应运而生。通过原子级针尖来增强并束缚住太赫兹辐射,将太赫兹成像的空间分辨率提升了多达6个数量级。为了进一步推动国内THz-STM相关研究的发展,重点介绍了THz-STM的发展历程、基本原理、系统构成以及潜在应用,包括在半导体和单分子中的超快动力学研究,并对该领域的下一步发展进行了展望。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135152251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
飞秒激光脉冲焊接透明微晶玻璃的实验研究 飞秒激光脉冲焊接透明微晶玻璃的实验研究
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl221445
陈观华 Chen Guanhua, 肖蒲庐 Xiao Pulu, 张翔 Zhang Xiang, 陈宇 Chen Yu, 袁孝 Yuan Xiao
{"title":"飞秒激光脉冲焊接透明微晶玻璃的实验研究","authors":"陈观华 Chen Guanhua, 肖蒲庐 Xiao Pulu, 张翔 Zhang Xiang, 陈宇 Chen Yu, 袁孝 Yuan Xiao","doi":"10.3788/cjl221445","DOIUrl":"https://doi.org/10.3788/cjl221445","url":null,"abstract":"利用飞秒激光脉冲开展了零热膨胀系数Li2O-Al2O3-SiO2(LAS)透明微晶玻璃的非光学接触式焊接研究,分析了不同能量飞秒激光焊接LAS透明微晶玻璃的焊缝形貌和剪切强度,并对焊接后LAS透明微晶玻璃的透过率进行了测量。在激光脉冲宽度为300 fs、波长为1030 nm、单脉冲能量为3.0 μJ时,焊接后LAS透明微晶玻璃的剪切强度高达23.51 MPa,光学透过率相对于原始LAS透明微晶玻璃下降了5%。随着单脉冲能量的增加,LAS透明微晶玻璃的光学透过率发生不同程度的下降,改性区域逐渐远离焦点,向激光源方向移动,使得分界面处的焊缝宽度先增大至10.7 μm而后逐渐减小。X射线衍射分析结果表明,在该激光参数下实现了LAS透明微晶玻璃焊接而未产生新的晶相。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135104402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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