Optimization and quantification of the liquid immersion method for characterization of ceramics green bodies and comparison of the method with comventional tools.
用于陶瓷生坯表征的液浸方法的优化和量化以及该方法与传统工具的比较。
基本信息
- 批准号:06555184
- 负责人:
- 金额:$ 6.59万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Developmental Scientific Research (B)
- 财政年份:1994
- 资助国家:日本
- 起止时间:1994 至 1995
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The objective of this study is to examine the relationship between the optical image of microscope and the true structure of green body. Ceramics specimens with known size and concentration of pores were prepared by first pressing the mixture of polystylene particles of spherical shape and ceramic powders, and then burning out of the particles. Powders of alumina, silicon nitride and zirconia were used.The characteristics of pores in the green bodies were consistent to those of polystylene particles used for the sample preparation. This result clearly shows that the present characterization method can successfully evaluate the shape, size and concentration of pores in the green bodies. The maximum specimen thickness for accurate evaluation decreased with decreasing size of pore. For pores of the size 40 microns located in alumina with the average particles size 200nm, the maximum thickness for accurate evaluation is approximately 0.5mm. With increasing mismatching between the specimen and the immersion liquid, the optical contrast increased. However, this reduced the transparency of the specimen, reducing the maximum thickness for evaluation. Overlapped pores can be evaluated separately by adjusting the position of focus at adequate position. The similar results were obtained for silcon nitride and zirconia green bodies.
本研究旨在探讨绿色体的显微光学影像与其真实结构之间的关系。将球形聚苯乙烯颗粒与陶瓷粉末混合后压制成型,再烧成多孔陶瓷,制得具有已知孔径和孔密度的多孔陶瓷试样。使用氧化铝、氮化硅和氧化锆粉末,绿色体中的孔特征与用于样品制备的聚苯乙烯颗粒的孔特征一致。该结果清楚地表明,本表征方法可以成功地评估绿色体中的孔的形状、尺寸和浓度。准确评估的最大试样厚度随孔隙尺寸的减小而减小。对于平均粒径为200纳米的氧化铝中尺寸为40微米的孔隙,准确评估的最大厚度约为0.5毫米。随着样品和浸没液体之间的失配的增加,光学对比度增加。然而,这降低了样品的透明度,降低了用于评估的最大厚度。重叠孔隙可通过调整适当位置的焦点位置单独评价。对于氮化硅和氧化锆绿色坯体获得了类似的结果。
项目成果
期刊论文数量(21)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
K.Uematsu: "Characteristics and formation mechanisms of defects in ceramic powder compacts" Ceramic Transactions,. 51. 263-70 (1995)
K.Uematsu:“陶瓷粉末压块缺陷的特性和形成机制”,Ceramic Transactions,。
- DOI:
- 发表时间:
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- 影响因子:0
- 作者:
- 通讯作者:
Y.Iwamoto: "Microstructure evolution and mechanical strength of silicon nitride ceramics" J.Materials Research,. 9. 1208-13 (1994)
Y.Iwamoto:“氮化硅陶瓷的微观结构演变和机械强度”J.Materials Research,。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
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- 通讯作者:
Y.Iwamoto, H.Monura, H.Kamiya and K.Uematsu: "Microstructure evolution and mechanical strength of silicon nitride ceramics" J.Materials Research. 9[5]. 1208-1213 (1994)
Y.Iwamoto、H.Monura、H.Kamiya 和 K.Uematsu:“氮化硅陶瓷的微观结构演变和机械强度”J.Materials Research。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
K.Uematsu: "Characterization of micro- and macro-structure of injection molded green body by liquid immersion method" J.Europian Ceramic Society,.
K.Uematsu:“通过液浸法表征注射成型生坯的微观和宏观结构”J.Europian Ceramic Society,。
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- 发表时间:
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- 影响因子:0
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- 通讯作者:
K.Uematsu,Y.Zhang and N.Uchida: "Characteristics and formation mechanisms of defects in ceramic powder compacts" Advances in Cevamics.
K.Uematsu、Y.Zhang 和 N.Uchida:“陶瓷粉末压块缺陷的特征和形成机制”Cevamics 进展。
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UEMATSU Keizo其他文献
UEMATSU Keizo的其他文献
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{{ truncateString('UEMATSU Keizo', 18)}}的其他基金
Development of crystal oriented transparent nano-ceramics
晶体取向透明纳米陶瓷的研制
- 批准号:
18206070 - 财政年份:2006
- 资助金额:
$ 6.59万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Formation mechanism of facture origin in alumina ceramics and suppression of strength variation through novel characterization method
氧化铝陶瓷断裂起源的形成机制以及通过新颖的表征方法抑制强度变化
- 批准号:
11305045 - 财政年份:1999
- 资助金额:
$ 6.59万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Gel casting based on thermal solidification andits interfacisl chemistry for production of defect-free ceramics
基于热凝固及其界面化学的凝胶浇注法生产无缺陷陶瓷
- 批准号:
09650921 - 财政年份:1997
- 资助金额:
$ 6.59万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Synthesis of Hydroxyapatite Based Bioceramic Composite by Hot Isostatic Pressing of Filter Cake
滤饼热等静压合成羟基磷灰石基生物陶瓷复合材料
- 批准号:
01550591 - 财政年份:1989
- 资助金额:
$ 6.59万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)