中国组织工程研究

中国组织工程研究 ›› 2011, Vol. 15 ›› Issue (8): 1421-1424.doi: 10.3969/j.issn.1673-8225.2011.08.022

• 生物材料基础实验 basic experiments of biomaterials • 上一篇    下一篇

烧结温度对氧化锆基台材料机械性能的影响

张慧敏1，杨建军1，林映辉2，王永亮3，杨凤丽1，王大山1，吴品林1   

  1. 青岛大学医学院附属医院，1口腔颌面外科,3口腔修复科，山东省青岛市 266003；2青岛市城阳区人民医院口腔科，山东省青岛市  266109
  • 收稿日期:2010-08-19 修回日期:2010-09-25 出版日期:2011-02-19 发布日期:2011-02-19
  • 通讯作者: 杨建军，教授，主任医师，硕士生导师，山东省青岛市 266003 yjjqd@126.com
  • 作者简介:张慧敏★，女，1985年生，山东省济宁市人，汉族，青岛大学医学院附属医院在读硕士。 zhanghuiminlove@126.com
  • 基金资助:

    青岛市科技计划项目的部分研究内容(08-2-1-5-nsh)。

Effect of sintering temperature on mechanical properties of zirconia ceramic abutment materials

Zhang Hui-min1, Yang Jian-jun1, Lin Ying-hui2, Wang Yong-liang3, Yang Feng-li1, Wang Da-shan1, Wu Pin-lin1   

  1. 1Department of Oral and Maxillofacial Surgery, 3Department of Prosthodontics, Affiliated Hospital of Qingdao University Medical College, Qingdao   266003, Shandong Province, China; 2Department of Stomatology, Chengyang District People’s Hospital of Qingdao, Qingdao   266109, Shandong Province, China
  • Received:2010-08-19 Revised:2010-09-25 Online:2011-02-19 Published:2011-02-19
  • Contact: Yang Jian-jun, Professor, Chief physician, Master’s supervisor, Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Qingdao University Medical College, Qingdao 266003, Shandong Province, China yjjqd@126.com
  • About author:Zhang Hui-min★, Studying for master’s degree, Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Qingdao University Medical College, Qingdao 266003, Shandong Province, China zhanghuiminlove@126.com
  • Supported by:

    Science and Technology Project of Qingdao, No. 08-2-1-5-nsh*

PDF

482

被引次数

7

摘要：

背景：不同的烧结方法和烧结温度对氧化锆材料的机械性能有较大影响，据文献报道有关氧化锆材料的烧结方法和烧结温度有多种，如何选择适宜的烧结方法、确定最佳的烧结温度是保证其机械性能的关键。
目的：观察烧结方法和烧结温度对氧化锆基台材料机械性能的影响。
方法：选用纳米氧化锆粉体，通过干压成型和冷等静压技术制备实验试件。试件经1 080 ℃预烧后进行车削加工，然后分别在1 350 ℃和1 450 ℃的温度下进行二次烧结。测试两组试件经二次烧结后的弯曲强度、维氏硬度及断裂韧性等机械性能指标并进行对比分析。
结果与结论：1 080 ℃/1 450 ℃烧结组试件各项机械性能均高于1 080 ℃/1 350 ℃烧结组试件，二次烧结温度为1 450 ℃时试件的三点弯曲强度、维氏硬度及断裂韧性分别为(858.74±94.94) MPa、(16.00±0.42) GPa和(6.96±0.55) MPa?m1/2。说明经1 080 ℃/1 450 ℃烧结的试件具有足够的机械性能，能够满足牙种植全瓷基台制作材料的应用要求。

关键词: 氧化锆, 牙种植全瓷基台, 烧结温度, 机械性能, 口腔生物材料

Abstract:

BACKGROUND: Different sintering temperatures and methods greatly affect the mechanical properties of zirconia materials. There are many reports about the sintering temperatures and methods of zirconia, the key to ensure good mechanical properties is to select proper sintering method and temperature. 
OBJECTIVE: To study the effects of sintering temperature and methods on mechanical properties of zirconia ceramic abutment materials.
METHODS: Nano-side zirconia powder was used in the test to prepare specimens by dry press method and cold isostatic press method. The specimens were pre-sintered at 1 080 ℃, then were turned and processed. The temperatures of second-sintering were 1 350 ℃ and 1 450 ℃ respectively. These two groups of specimens were measured on flexural strength, Vicker’s hardness and fracture toughness. All the results were compared and analyzed.
RESULTS AND CONCLUSION: All mechanical properties of specimens in 1 080 ℃/1 450 ℃ sintering groups were higher than that of 1 080 ℃/1 350 ℃ groups. When the second-time sintering temperature was 1 450 ℃, the three-point bending strength, Vicker’s hardness and fracture toughness were (858.74±94.94) MPa, (16.00±0.42) GPa and (6.96±0.55) MPa?m1/2 respectively. Zirconia specimens sintered at 1 080 ℃/1 450 ℃ have good enough mechanical properties to fit the requirement of all-ceramic abutment materials.

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