Abstract
High-quality bulk REBa2Cu3O7−x (RE = Y,Eu,Gd,Nd,La) was synthesized by a solution method. Stoichiometric amounts of yttrium, barium, and copper acetates were dissolved in glacial acetic acid. The acid was boiled away leaving a glassy acetate precursor. This precursor has shown amorphous scattering in XRD, a phenomenon consistent with atomic level mixing of reactants. The glassy precursor was subsequently heat-treated with a 5 °C/min ramp to 900 °C and a 2 h soak at 900 °C in air. The final product was obtained after heat treatment under oxygen at 550 °C with slow cooling to room temperature. Final products were analyzed by XRD, SEM, and four probe de-resistivity measurements. The mechanism of both precursor and product formation was examined through substitution studies and XRD. It was found that a combination of a rare earth acetate, barium acetate, and acetic acid was necessary for the formation of an amorphous precursor.
References
33
Referenced
12
10.1021/ic00259a004
10.1111/j.1151-2916.1970.tb12674.x
10.1111/j.1151-2916.1992.tb05561.x
{'key': 'S088429140007638X_ref003', 'volume-title': 'Comprehensive Chemical Kinetics, Volume 22, Reactions in the Solid State', 'author': 'Brown', 'year': '1980'}
/ Comprehensive Chemical Kinetics, Volume 22, Reactions in the Solid State by Brown (1980){'key': 'S088429140007638X_ref026', 'volume-title': 'Non-Aqueous Solvent Systems', 'author': 'Waddington', 'year': '1965'}
/ Non-Aqueous Solvent Systems by Waddington (1965)10.1021/j150491a003
10.1016/0038-1098(87)90552-7
{'key': 'S088429140007638X_ref025', 'volume-title': 'CRC Handbook of Physics and Chemistry', 'author': 'Weast', 'year': '1981'}
/ CRC Handbook of Physics and Chemistry by Weast (1981)10.1021/ja01221a019
{'key': 'S088429140007638X_ref011', 'first-page': '59', 'volume': '38', 'author': 'Real', 'year': '1986', 'journal-title': 'Proc. Brit. Ceram. Soc.'}
/ Proc. Brit. Ceram. Soc. by Real (1986)10.1002/zaac.19382360130
10.1021/ja01365a011
{'key': 'S088429140007638X_ref027', 'first-page': '239', 'volume': '55', 'author': 'Kolthoff', 'year': '1934', 'journal-title': 'J. Am. Chem. Soc.'}
/ J. Am. Chem. Soc. by Kolthoff (1934)10.1016/0022-3093(90)90172-I
10.1557/JMR.1990.0683
10.1111/j.1151-2916.1969.tb13378.x
10.1111/j.1151-2916.1993.tb04007.x
10.1016/0022-3093(90)90174-K
10.1021/ja01306a010
{'key': 'S088429140007638X_ref007', 'volume-title': 'Chemistry of Solid State Materials 1, Chemical Synthesis of Advanced Materials', 'author': 'Segal', 'year': '1989'}
/ Chemistry of Solid State Materials 1, Chemical Synthesis of Advanced Materials by Segal (1989)10.1557/JMR.1992.2017
10.1111/j.1151-2916.1990.tb09830.x
10.1103/PhysRevLett.58.1676
10.1557/JMR.1992.0827
{'key': 'S088429140007638X_ref024', 'volume-title': 'Inorganic Chemistry', 'author': 'Kleinberg', 'year': '1960'}
/ Inorganic Chemistry by Kleinberg (1960)10.1016/0040-6090(91)90410-Y
10.1126/science.243.4887.66
10.1021/ed069p1031
{'key': 'S088429140007638X_ref020', 'volume': '15', 'author': 'dos Santos', 'year': '1990', 'journal-title': 'Energy Res. Abstr.'}
/ Energy Res. Abstr. by dos Santos (1990)10.1021/ja01394a009
{'key': 'S088429140007638X_ref030', 'first-page': '1631', 'volume': '53', 'author': 'Nirsha', 'year': '1983', 'journal-title': 'Zh. Obschch. Khim. USSR'}
/ Zh. Obschch. Khim. USSR by Nirsha (1983)10.1088/0953-2048/4/8/003
- 29Personal communication, Titus D. D. , Department of Chemistry, Temple University, Philadelphia, PA 19122 (1993).
Dates
Type | When |
---|---|
Created | 17 years, 11 months ago (Sept. 27, 2007, 8:23 a.m.) |
Deposited | 4 years, 6 months ago (Feb. 24, 2021, 4:53 p.m.) |
Indexed | 1 year, 6 months ago (Feb. 2, 2024, 12:24 p.m.) |
Issued | 30 years, 7 months ago (Jan. 1, 1995) |
Published | 30 years, 7 months ago (Jan. 1, 1995) |
Published Online | 14 years, 5 months ago (March 3, 2011) |
Published Print | 30 years, 7 months ago (Jan. 1, 1995) |
@article{McHale_1995, title={Simplified preparation of REBa2Cu3O7−x via the acetate method}, volume={10}, ISSN={2044-5326}, url={http://dx.doi.org/10.1557/jmr.1995.0001}, DOI={10.1557/jmr.1995.0001}, number={1}, journal={Journal of Materials Research}, publisher={Springer Science and Business Media LLC}, author={McHale, J. and Myer, G.H. and Salomon, R.E.}, year={1995}, month=jan, pages={1–6} }