Crystal Structure, Chemical Bond, and Microwave Dielectric Properties of Ba1−xSrx(Zn1/3Nb2/3)O3 Solid Solution Ceramics
Abstract
:1. Introduction
2. Results and Discussion
3. Materials and Methods
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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x | a = b = c (Å) | α = β = γ (°) | Vcell (Å3) |
---|---|---|---|
0 | 4.09548 | 90 | 68.65 |
0.1 | 4.08758 | 90 | 68.3 |
0.2 | 4.0796 | 90 | 67.9 |
0.4 | 4.0625 | 90 | 67.05 |
0.6 | 4.04586 | 90 | 66.23 |
0.8 | 4.02254 | 90 | 65.09 |
x | Atomic Percentage (%) | ||||
---|---|---|---|---|---|
Ba | Sr | Zn | Nb | O | |
0 | 26.71 | / | 3.56 | 17.59 | 52.14 |
0.1 | 21.35 | 1.97 | 3.75 | 15.91 | 57.02 |
0.2 | 19.76 | 4.95 | 4.13 | 16.78 | 54.38 |
0.4 | 17.04 | 11.21 | 2.88 | 18.05 | 50.82 |
0.6 | 10.75 | 15.88 | 3.47 | 17.99 | 51.91 |
0.8 | 5.3 | 21.36 | 3.42 | 16.36 | 53.56 |
Bond Type | Bond Length (Å) | fi (%) | fc (%) |
---|---|---|---|
Ba-O | 2.92 | 85.80 | 14.20 |
Zn-O | 2.01 | 56.03 | 43.97 |
Nb-O | 2.07 | 83.34 | 16.66 |
x | εr | Vcell | Z | αtheo | αobs | Δ (%) |
---|---|---|---|---|---|---|
0 | 40.91 | 68.65 | 1 | 15.7567 | 15.243 | 3.26 |
0.1 | 42.88 | 68.30 | 1 | 15.5407 | 15.215 | 2.1 |
0.2 | 45.25 | 67.90 | 1 | 15.3247 | 15.1807 | 0.94 |
0.4 | 44.60 | 67.05 | 1 | 14.8927 | 14.977 | 0.57 |
0.6 | 42.93 | 66.23 | 1 | 14.4607 | 14.7556 | 2.04 |
0.8 | 40.55 | 65.09 | 1 | 14.0287 | 14.4435 | 2.96 |
x | dNbO (Å) | RNbO | VNbO | Δoctahedral | Eb (KJ/mol) | τf (ppm/°C) | |
---|---|---|---|---|---|---|---|
0 | 2.07823 × 3 | 1.911 | 0.6364 × 3 | 3.9195 | 0.91 × 10−4 | 1060 | 27.72 |
2.0591 × 3 | 0.6701 × 3 | ||||||
0.1 | 2.05809 × 3 | 1.911 | 0.636 × 3 | 3.9239 | 1.03 × 10−4 | 1062 | 11.61 |
2.07844 × 3 | 0.672 × 3 | ||||||
0.2 | 2.06544 × 3 | 1.911 | 0.7106 × 3 | 3.9773 | 1.7 × 10−4 | 1074 | 1.26 |
1.89159 × 3 | 0.6152 × 3 | ||||||
0.4 | 2.02418 × 3 | 1.911 | 0.7347 × 3 | 5.3024 | 1.6 × 10−3 | 1034 | −5.16 |
1.8997 × 3 | 1.031 × 3 | ||||||
0.6 | 2.04764 × 3 | 1.911 | 0.6912 × 3 | 5.7635 | 3 × 10−3 | 1016 | −8.69 |
1.83442 × 3 | 1.2299 × 3 | ||||||
0.8 | 2.04507 × 3 | 1.911 | 0.696 × 3 | 6.3778 | 4.8 × 10−3 | 995 | −15.72 |
1.77869 × 3 | 1.4299 × 3 |
Year | Ceramics Composition | Sintering Temperature (°C) | εr | Q × f (GHz) | τf (ppm/°C) | Reference |
---|---|---|---|---|---|---|
1982 | Ba(Zn1/3Nb2/3)O3 | 1500 | 41 | 54,000 | +30 | [1] |
2003 | 0.95Ba(Zn1/3Nb2/3)O3 + 0.05 BaZrO3 | 1450 | 42 | 96,000 | +27 | [25] |
2004 | Ba[(Zn1−xCox)1/3Nb2/3]O3 (x = 0.8) | 1450 | 33 | 20,248 | −0.11 | [26] |
2010 | Ba(Zn1−xMgx)1/3Nb2/3)O3 (x = 0.4) | 1400 | 36 | 94,400 | +28.6 | [27] |
2008 | Ba1−xLa2x/3(Zn0.3Co0.7)1/3Nb2/3O3 (x = 0.015) | 1425 | 34 | 63,159 | 5.21 | [13] |
2023 | Ba1−xSrx(Zn1/3Nb2/3)O3 (x = 0.2) | 1500 | 45.25 | 72,704 | 1.26 | This work |
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Xiao, L.; Deng, L.; Zhang, Y.; Wu, P.; Zeng, W.; Peng, S. Crystal Structure, Chemical Bond, and Microwave Dielectric Properties of Ba1−xSrx(Zn1/3Nb2/3)O3 Solid Solution Ceramics. Molecules 2023, 28, 3451. https://doi.org/10.3390/molecules28083451
Xiao L, Deng L, Zhang Y, Wu P, Zeng W, Peng S. Crystal Structure, Chemical Bond, and Microwave Dielectric Properties of Ba1−xSrx(Zn1/3Nb2/3)O3 Solid Solution Ceramics. Molecules. 2023; 28(8):3451. https://doi.org/10.3390/molecules28083451
Chicago/Turabian StyleXiao, Lei, Lianwen Deng, Yu Zhang, Ping Wu, Wenfei Zeng, and Sen Peng. 2023. "Crystal Structure, Chemical Bond, and Microwave Dielectric Properties of Ba1−xSrx(Zn1/3Nb2/3)O3 Solid Solution Ceramics" Molecules 28, no. 8: 3451. https://doi.org/10.3390/molecules28083451