臺灣博碩士論文加值系統

摘 要
近年來，由於行動通訊系統（mobile communication system）蓬勃發展，大量學者參與陶瓷介電共振器的研究，而利用高介電常數值、低損耗的陶瓷介電材料作成之元件，可大幅縮小共振器的體積和重量，可有效降低了整個系統的成本。
本實驗之研究以Zn1-xMxNb2O6-為主要成分，分別添加不同之氧化物，使M分別為Ni、Cu、Mn、Fe、Na。測試各種系列下之介電性質，並藉由其緻密程度與X-Ray等量測，找出各種添加之氧化物對Zn1-xMxNb2O6之影響。說明在主結構未改變下，其介電性質隨溫度以及x含量變化之關係。

Abstract
In recent years, because the mobile communication system was well developed, a large number of scholars participated in the researches of ceramic dielectric resonators, and took advantage of ceramic dielectric materials with high dielectric constant and with low loss to produce the devices, then we could reduce the volume and weight of resonator in a large margin to lower the cost of whole the system efficiently.
This study took Zn1-xMxNb2O6 to be major composition, added various oxide separately, and set M to be Ni, Cu, Mn, Fe, Na. Tested dielectric properties of each kinds of system, and by the degree of densification and the measurements of X-Ray etc, to found the effect of every kinds of added oxide on Zn1-xMxNb2O6. Illustrated the relationship of dielectric properties with temperature and x containing variation in the unchanged main structure.

Content
Abstract-------------------------------------------------------i
Content ------------------------------------------------------ii
Table Content ------------------------------------------------iv
Figure Content ------------------------------------------------v
ChapterⅠ. Introduction----------------------------------------1
ChapterⅡ. Literature Survey-----------------------------------4
2-1 The basic characteristics of dielectric ceramic materials--4
2-1-1 Dielectric constant--------------------------------------4
2-1-2 Tangent loss---------------------------------------------7
2-1-3 Resonated frequency temperature coefficient--------------9
2-2 Relate system of microwave materials----------------------10
ChapterⅢ. Experimental Procedures----------------------------14
1. Preparation of Powders ------------------------------------14
2. Chemical Properties of Powders ----------------------------14
(a) X-ray Diffraction analysis -------------------------------14
(b) Raman spectrum analysis --------------------------------------14
(c) EPR analysis -----------------------------------------------------15
3. Sintering ------------------------------------------------------------------15
4. Property Analysis of Green Compact -------------------------------15
(a) Analysis of density and porosity ------------------------------15
(b) Electrical analysis -----------------------------------------------15
(c) SEM analysis ----------------------------------------------------16
ChapterⅣ. Result and Discussion ------------------------------------------17
4-1 Analysis of ZnNb2O6-------------------------------------------------17
4-1-1 Analysis of X-ray Diffractions -----------------------------------17
4-1-2 Analysis of Raman Spectrum ------------------------------------17
4-1-3 Analysis of Density and Porosity --------------------------------17
4-1-4 Analysis of Dielectric Properties --------------------------------18
4-2 Analysis of Zn1-xNixNb2O6-------------------------------------------18
4-2-1 Analysis of X-ray Diffractions -----------------------------------18
4-2-2 Analysis of Raman Spectrum ------------------------------------18
4-2-3 Analysis of Density and Porosity --------------------------------19
4-2-4 Analysis of Dielectric Properties --------------------------------19
4-3 Analysis of Zn1-xNixNb2O6-------------------------------------------20
4-3-1 Analysis of X-ray Diffractions -----------------------------------20
4-3-2 Analysis of Raman Spectrum ------------------------------------20
4-3-3 Analysis of Density and Porosity --------------------------------20
4-3-4 Analysis of Dielectric Properties --------------------------------21
4-3-5 Analysis of Microstructure ---------------------------------------21
4-4 Analysis of Zn1-xCuxNb2O6------------------------------------------21
Part A：Additives of MnO
4-4-1a Analysis of X-ray Diffractions ----------------------------------21
4-4-2a Analysis of Raman Spectrum -----------------------------------22
4-4-3a Analysis of Density and Porosity -------------------------------22
4-4-4a Analysis of Dielectric Properties -------------------------------22
4-4-5a Analysis of Microstructure --------------------------------------22
Part B：Additives of Mn2O3
4-4-1b Analysis of X-ray Diffractions ---------------------------------23
4-4-2b Analysis of Raman Spectrum -----------------------------------23
4-4-3b Analysis of Density and Porosity ------------------------------24
4-4-4b Analysis of Dielectric Properties -------------------------------24
4-4-5b Analysis of Microstructure --------------------------------------24
4-5 Analysis of Zn1-xFexNb2O6-------------------------------------------24
4-5-1 Analysis of X-ray Diffractions -----------------------------------24
4-5-2 Analysis of Raman Spectrum ------------------------------------25
4-5-3 Analysis of Density and Porosity --------------------------------25
4-5-4 Analysis of Dielectric Properties --------------------------------25
4-5-5 Analysis of Microstructure ---------------------------------------26
4-5-6 Analysis of EPR----------------------------------------------------26
4-6 Analysis of Zn1-xNaxNb2O6------------------------------------------26
4-6-1 Analysis of X-ray Diffractions -----------------------------------26
4-6-2 Analysis of Raman Spectrum ------------------------------------27
4-6-3 Analysis of Density and Porosity --------------------------------27
4-6-4 Analysis of Dielectric Properties --------------------------------27
ChapterⅣ. Conclusion--------------------------------------------------------28
Reference-------------------------------------------------------------------------29

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