Article(id=1311350692569243676, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1311350424792301947, articleNumber=null, orderNo=null, doi=10.13355/j.cnki.sfyj.2026.02.009, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1761753600000, receivedDateStr=2025-10-30, revisedDate=1764604800000, revisedDateStr=2025-12-02, acceptedDate=null, acceptedDateStr=null, onlineDate=1790579968825, onlineDateStr=2026-09-28, pubDate=1776614400000, pubDateStr=2026-04-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790579968825, onlineIssueDateStr=2026-09-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790579968825, creator=13701087609, updateTime=1790579968825, updator=13701087609, issue=Issue{id=1311350424792301947, tenantId=1146029695717560320, journalId=1146120122248306696, year='2026', volume='45', issue='2', pageStart='129', pageEnd='272', issueExtLink='null', onlineDate='null', pubDate='1776614400000', pubDateStr='2026-04-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1790579904983, creator='13701087609', updateTime=1790588502603, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1311386485903942043, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1311350424792301947, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1311386485903942044, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1311350424792301947, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=196, endPage=207, ext={EN=ArticleExt(id=1311350692770570269, articleId=1311350692569243676, tenantId=1146029695717560320, journalId=1146120122248306696, language=EN, title=Preparation and Mechanism of Yttrium Oxide for Electronic Ceramics, columnId=1152626641181700664, journalTitle=Hydrometallurgy of China, columnName=Experiment Research, runingTitle=null, highlight=null, articleAbstract=

The preparation of yttrium oxide (Y2O3) crystals suitable for industrial production of electronic ceramics by a two-step precipitation method using ammonia water and ammonium bicarbonate was studied. The effects of solution concentration, precipitant concentration, surfactant addition amount, reaction temperature, feeding rate, stirring speed, aging method and time, and calcination method and time of the precursor on the particle size of the prepared Y2O3 powder were investigated. The decomposition mechanism and kinetics of the precursor were also explored. The results show that the use of ammonium sulfide to purify 99.9% of yttrium oxide can effectively remove metal impurities. Under the optimal conditions of room temperature, Y(NO3)2 solution mass concentration of 100 g/L, NH4HCO3 solution mass concentration and addition rate of 200 g/L and 6 mL/min, respectively, stirring speed of 370 r/min, aging time of 1 h, surfactant addition amount of 2.5%, microwave drying for 10 min, calcination temperature of 800 ℃, and calcination time of 2 h, spherical cubic Y2O3 crystals with D50 = 1.018 μm and BET = 31.32 m2/g can be prepared, which meet the requirements of Y2 O3 powder for electronic ceramics. The analysis of the decomposition process and mechanism of the precursor Y2(CO3)3·2H2O to Y2O3 indicates that Y2(CO3)3·2H2O is converted to Y2 O3 through the intermediate state of Y2CO5. The decomposition of the precursor to Y2O3 occurs in three stages, with activation energies of 61.68, 564.22, and 590.103 kJ/mol, and corresponding reaction orders of 1.836 9, 0.896 4, and 0.972 2, respectively. The method can achieve industrial production of Y2O3 for electronic ceramics. The entire process is simple to operate, low-cost, environmentally friendly, and pollution-free, with significant economic and social benefits and broad application prospects.

, authors=Jiayao CHENG1, 2, 3, Shengfeng MA1, Xiaowei ZHANG2, 3, Shaochun HOU1, Wei FENG1, Kai GAO1, authorsList=Jiayao CHENG, Shengfeng MA, Xiaowei ZHANG, Shaochun HOU, Wei FENG, Kai GAO, authorCompany=null, correspAuthors=Shengfeng MA, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1311350693190000670, articleId=1311350692569243676, tenantId=1146029695717560320, journalId=1146120122248306696, language=CN, title=电子陶瓷用氧化钇的制备及其机制研究, columnId=1152626641328501305, journalTitle=湿法冶金, columnName=试验研究, runingTitle=null, highlight=null, articleAbstract=

研究了以氨水-碳酸氢铵两步沉淀法制备适用于工业化生产的电子陶瓷用氧化钇晶体,考察了料液浓度、沉淀剂浓度、表面活性剂添加量、反应温度、加料速度、搅拌速度、陈化方式及时间、前驱体焙烧方式及时间等因素对制备氧化钇粉体粒度的影响,并探讨了前驱体分解机制及其动力学。结果表明:采用硫化铵对99.9%的氧化钇提纯除杂,可有效去除金属杂质;在室温、Y(NO3)3溶液质量浓度100 g/L、NH4HCO3溶液质量浓度及滴加速度分别为200 g/L和6 mL/min、搅拌速度370 r/min、搅拌陈化时间1 h、表面活性剂添加量2.5%、微波加热干燥 10 min、前驱体焙烧温度800 ℃和焙烧时间2 h最佳工艺条件下,可制备D50=1.018 μm、BET=31.32 m2/g的球状立方相Y2O3晶体,该晶体符合电子陶瓷用氧化钇粉体指标要求;前驱体碳酸钇分解生成氧化钇的过程与机制分析结果表明,Y2(CO3)3·2H2O经过Y2CO5中间态转化为Y2O3,前驱体经3个阶段分解转化为氧化钇,分解3个阶段的活化能分别为61.68、564.22、590.103 kJ/mol,对应的反应级数分别为1.836 9,0.896 4和0.972 2。该法可实现电子陶瓷用氧化钇工业化制备,整个流程操作简单,成本低,环保无污染,经济效益和社会效益显著,具有广阔的应用前景。

, authors=程佳瑶1, 2, 3, 马升峰1, 张晓伟2, 3, 候少春1, 冯伟1, 高凯1, authorsList=程佳瑶, 马升峰, 张晓伟, 候少春, 冯伟, 高凯, authorCompany=null, correspAuthors=马升峰, authorNote=

程佳瑶(2002—),女,硕士研究生,主要研究方向为稀土功能材料合成。

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马升峰(1985—),女,博士,正高级工程师,主要研究方向为稀土冶金及功能材料合成。E-mail: 。
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电子陶瓷用氧化钇的制备及其机制研究
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程佳瑶 1, 2, 3 , 马升峰 1 , 张晓伟 2, 3 , 候少春 1 , 冯伟 1 , 高凯 1
湿法冶金 | 试验研究 2026,45(2): 196-207
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湿法冶金 |试验研究 2026 , 45 (2) : 196 -207
电子陶瓷用氧化钇的制备及其机制研究
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程佳瑶1, 2, 3, 马升峰1 , 张晓伟2, 3, 候少春1, 冯伟1, 高凯1
作者信息
  • 1.包头稀土研究院 白云鄂博稀土资源研究与综合利用全国重点实验室,内蒙古 包头 014030
  • 2.内蒙古科技大学 稀土产业学院,内蒙古 包头 014010
  • 3.轻稀土资源绿色提取与高效利用教育部重点实验室,内蒙古 包头 014010
通讯作者:
马升峰(1985—),女,博士,正高级工程师,主要研究方向为稀土冶金及功能材料合成。E-mail: 。
作者简介:

程佳瑶(2002—),女,硕士研究生,主要研究方向为稀土功能材料合成。

Preparation and Mechanism of Yttrium Oxide for Electronic Ceramics
Jiayao CHENG1, 2, 3, Shengfeng MA1 , Xiaowei ZHANG2, 3, Shaochun HOU1, Wei FENG1, Kai GAO1
Affiliations
  • 1.State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization, Baotou Research Institute of Rare Earths, Baotou 014030, China
  • 2.College of Rare Earth Industry, Inner Mongolia University of Science and Technology, Baotou 014010, China
  • 3.Key Laboratory of Green Extraction and Efficient Utilization of Light Rare Earth Resources, Ministry of Education, Baotou 014010, China
出版时间: 2026-04-20 doi: 10.13355/j.cnki.sfyj.2026.02.009
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研究了以氨水-碳酸氢铵两步沉淀法制备适用于工业化生产的电子陶瓷用氧化钇晶体,考察了料液浓度、沉淀剂浓度、表面活性剂添加量、反应温度、加料速度、搅拌速度、陈化方式及时间、前驱体焙烧方式及时间等因素对制备氧化钇粉体粒度的影响,并探讨了前驱体分解机制及其动力学。结果表明:采用硫化铵对99.9%的氧化钇提纯除杂,可有效去除金属杂质;在室温、Y(NO3)3溶液质量浓度100 g/L、NH4HCO3溶液质量浓度及滴加速度分别为200 g/L和6 mL/min、搅拌速度370 r/min、搅拌陈化时间1 h、表面活性剂添加量2.5%、微波加热干燥 10 min、前驱体焙烧温度800 ℃和焙烧时间2 h最佳工艺条件下,可制备D50=1.018 μm、BET=31.32 m2/g的球状立方相Y2O3晶体,该晶体符合电子陶瓷用氧化钇粉体指标要求;前驱体碳酸钇分解生成氧化钇的过程与机制分析结果表明,Y2(CO3)3·2H2O经过Y2CO5中间态转化为Y2O3,前驱体经3个阶段分解转化为氧化钇,分解3个阶段的活化能分别为61.68、564.22、590.103 kJ/mol,对应的反应级数分别为1.836 9,0.896 4和0.972 2。该法可实现电子陶瓷用氧化钇工业化制备,整个流程操作简单,成本低,环保无污染,经济效益和社会效益显著,具有广阔的应用前景。

电子陶瓷  /  氧化钇  /  制备  /  两步沉淀  /  分解机制

The preparation of yttrium oxide (Y2O3) crystals suitable for industrial production of electronic ceramics by a two-step precipitation method using ammonia water and ammonium bicarbonate was studied. The effects of solution concentration, precipitant concentration, surfactant addition amount, reaction temperature, feeding rate, stirring speed, aging method and time, and calcination method and time of the precursor on the particle size of the prepared Y2O3 powder were investigated. The decomposition mechanism and kinetics of the precursor were also explored. The results show that the use of ammonium sulfide to purify 99.9% of yttrium oxide can effectively remove metal impurities. Under the optimal conditions of room temperature, Y(NO3)2 solution mass concentration of 100 g/L, NH4HCO3 solution mass concentration and addition rate of 200 g/L and 6 mL/min, respectively, stirring speed of 370 r/min, aging time of 1 h, surfactant addition amount of 2.5%, microwave drying for 10 min, calcination temperature of 800 ℃, and calcination time of 2 h, spherical cubic Y2O3 crystals with D50 = 1.018 μm and BET = 31.32 m2/g can be prepared, which meet the requirements of Y2 O3 powder for electronic ceramics. The analysis of the decomposition process and mechanism of the precursor Y2(CO3)3·2H2O to Y2O3 indicates that Y2(CO3)3·2H2O is converted to Y2 O3 through the intermediate state of Y2CO5. The decomposition of the precursor to Y2O3 occurs in three stages, with activation energies of 61.68, 564.22, and 590.103 kJ/mol, and corresponding reaction orders of 1.836 9, 0.896 4, and 0.972 2, respectively. The method can achieve industrial production of Y2O3 for electronic ceramics. The entire process is simple to operate, low-cost, environmentally friendly, and pollution-free, with significant economic and social benefits and broad application prospects.

electronic ceramics  /  yttrium oxide  /  preparation  /  two-step precipitation  /  decomposition mechanism
程佳瑶, 马升峰, 张晓伟, 候少春, 冯伟, 高凯. 电子陶瓷用氧化钇的制备及其机制研究. 湿法冶金, 2026 , 45 (2) : 196 -207 . DOI: 10.13355/j.cnki.sfyj.2026.02.009
Jiayao CHENG, Shengfeng MA, Xiaowei ZHANG, Shaochun HOU, Wei FENG, Kai GAO. Preparation and Mechanism of Yttrium Oxide for Electronic Ceramics[J]. Hydrometallurgy of China, 2026 , 45 (2) : 196 -207 . DOI: 10.13355/j.cnki.sfyj.2026.02.009
  • 北方稀土项目(BFXT-2023-0034)
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2026年第45卷第2期
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doi: 10.13355/j.cnki.sfyj.2026.02.009
  • 接收时间:2025-10-30
  • 首发时间:2026-09-28
  • 出版时间:2026-04-20
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  • 收稿日期:2025-10-30
  • 修回日期:2025-12-02
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北方稀土项目(BFXT-2023-0034)
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    1.包头稀土研究院 白云鄂博稀土资源研究与综合利用全国重点实验室,内蒙古 包头 014030
    2.内蒙古科技大学 稀土产业学院,内蒙古 包头 014010
    3.轻稀土资源绿色提取与高效利用教育部重点实验室,内蒙古 包头 014010

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马升峰(1985—),女,博士,正高级工程师,主要研究方向为稀土冶金及功能材料合成。E-mail: 。
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2种不同金属材料的力学参数
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属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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