Material Specification for Y:123; [Y-Ba-Cu-O]
Process: Melt Processed
Notes: "YBCO superconductors with and without Zr were prepared from an appropriate mixture of high-purity Y2O3, BaCO3, CuO and ZrO2 powders, which was uniaxially pressed into a pellet and calcined at 930 °C for 12 h in oxygen atmosphere. The composition was adjusted in the following two series: Zrx-YBa2Cu3O7-δ (type A) and ZrxYBa2+xCu3O7-δ (type B), where 0 ≤ x ≤ 0.8. The calcination was repeated three times... Ag metal powders (2 µm in diameter) were also mixed with the calcined YBCO powders and pressed into a pellet 20 mm in diameter and about 10 mm thick. The pellet thus obtained was heated to 1040 °C at a heating rate of 100 °C/h, and was held for 2 h. It was cooled to 1000 °C and then slowly cooled down to 940 °C at a rate of 1 °C/h, with subsequent furnace cooling to room temperature. The post annealing was added at 400-600 °C for 20-60 h for oxygen uptake. All heat treatments were performed in oxygen flowing atmosphere at an ambient pressure. The heat-treated sample was cut into a rectangular form using a slow speed diamond saw."
Formula: YBa2Cu3O7-y•Zrx
Informal Name: Y:123
Chemical Family: Y-Ba-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Critical Current Density for Y:123; [Y-Ba-Cu-O]
| Amount of Y211 (mol%) |
Mass Fraction of Ag (%) |
x of Zrx (formula units) |
Critical Current Density (kA/cm2) |
| -- |
-- |
0 |
13.5 |
| -- |
-- |
0.03 |
16.0 |
| -- |
-- |
0.06 |
11.0 |
| -- |
-- |
0.1 |
8.8 |
| -- |
-- |
0.2 |
5.1 |
| -- |
-- |
0.3 |
3.8 |
| -- |
-- |
0.5 |
2.3 |
| -- |
-- |
0.8 |
1.5 |
Measurement Method: Vibrating sample magnetometer
"Magnetization curves were measured with a vibrating sample magnetometer... at 77 K using a magnetic field up to 1 T and a sweep rate of 0.1 T/min for the sample with a size of approximately 3 x 3 x 0.6 mm
3... the direction of a sample with regard to the magnetic field was chosen such that the larget hysteresis was observed in the M-H curve... The Bean critical state model may be applied to the evaluation (of the critical current)."
Cautions: Evaluated Data
Flexural Strength for Y:123; [Y-Ba-Cu-O]
| Amount of Y211 (mol%) |
Mass Fraction of Ag (%) |
x of Zrx (formula units) |
Flexural Strength (MPa) |
| -- |
-- |
0 |
27.8 |
| -- |
-- |
0.6 |
6.7 |
| -- |
-- |
0.1 |
9.5 |
| -- |
-- |
0.2 |
6.7 |
| -- |
-- |
0.3 |
14.9 |
| -- |
-- |
0.5 |
23.7 |
| -- |
-- |
0.8 |
54.8 |
Measurement Method: Three-point bend
The authors cite "Testing Method for Flexural Strength of High Performance Ceramics: Japanese Industrial Standards," R1601 (1981), and summarize the procedure as follows. "The mechanical strength was evaluated by measuring the flexural strength... in the 3-point bending mode at room temperature with a span length of 14.7 mm and a cross-head speed of 0.5 mm/min. The size of the samples was 3.5 x 1 x 20 mm
3. A surface of the sample was polished in order to reduce cracks on the surface."
Cautions: Evaluated Data
Material Specification for Y:123; [Y-Ba(Zr)-Cu-O]
Process: Melt Processed
Notes: "YBCO superconductors with and without Zr were prepared from an appropriate mixture of high-purity Y2O3, BaCO3, CuO and ZrO2 powders, which was uniaxially pressed into a pellet and calcined at 930 °C for 12 h in oxygen atmosphere. The composition was adjusted in the following two series: Zrx-YBa2Cu3O7-δ (type A) and ZrxYBa2+xCu3O7-δ (type B), where 0 ≤ x ≤ 0.8. The calcination was repeated three times... Ag metal powders (2 µm in diameter) were also mixed with the calcined YBCO powders and pressed into a pellet 20 mm in diameter and about 10 mm thick. The pellet thus obtained was heated to 1040 °C at a heating rate of 100 °C/h, and was held for 2 h. It was cooled to 1000 °C and then slowly cooled down to 940 °C at a rate of 1 °C/h, with subsequent furnace cooling to room temperature. The post annealing was added at 400-600 °C for 20-60 h for oxygen uptake. All heat treatments were performed in oxygen flowing atmosphere at an ambient pressure. The heat-treated sample was cut into a rectangular form using a slow speed diamond saw."
Formula: YBa2-xZrxCu3O7-y
Informal Name: Y:123
Chemical Family: Y-Ba(Zr)-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Critical Current Density for Y:123; [Y-Ba(Zr)-Cu-O]
| Amount of Y211 (mol%) |
Mass Fraction of Ag (%) |
x of Zrx (formula units) |
Critical Current Density (kA/cm2) |
| -- |
-- |
0 |
14.0 |
| -- |
-- |
0.03 |
14.0 |
| -- |
-- |
0.1 |
16.3 |
| -- |
-- |
0.2 |
10.5 |
| -- |
-- |
0.3 |
7.7 |
| -- |
-- |
0.5 |
6.6 |
| -- |
-- |
0.8 |
3.5 |
Measurement Method: Vibrating sample magnetometer
"Magnetization curves were measured with a vibrating sample magnetometer... at 77 K using a magnetic field up to 1 T and a sweep rate of 0.1 T/min for the sample with a size of approximately 3 x 3 x 0.6 mm
3... the direction of a sample with regard to the magnetic field was chosen such that the larget hysteresis was observed in the M-H curve... The Bean critical state model may be applied to the evaluation (of the critical current)."
Cautions: Evaluated Data
Material Specification for Y:123; [Y-Ba-Cu-O:Ag]
Process: Melt Processed
Notes: "YBCO superconductors with and without Zr were prepared from an appropriate mixture of high-purity Y2O3, BaCO3, CuO and ZrO2 powders, which was uniaxially pressed into a pellet and calcined at 930 °C for 12 h in oxygen atmosphere. The composition was adjusted in the following two series: Zrx-YBa2Cu3O7-δ (type A) and ZrxYBa2+xCu3O7-δ (type B), where 0 ≤ x ≤ 0.8. The calcination was repeated three times... Ag metal powders (2 µm in diameter) were also mixed with the calcined YBCO powders and pressed into a pellet 20 mm in diameter and about 10 mm thick. The pellet thus obtained was heated to 1040 °C at a heating rate of 100 °C/h, and was held for 2 h. It was cooled to 1000 °C and then slowly cooled down to 940 °C at a rate of 1 °C/h, with subsequent furnace cooling to room temperature. The post annealing was added at 400-600 °C for 20-60 h for oxygen uptake. All heat treatments were performed in oxygen flowing atmosphere at an ambient pressure. The heat-treated sample was cut into a rectangular form using a slow speed diamond saw."
Formula: YBa2Cu3O7-y•pAg
Informal Name: Y:123
Chemical Family: Y-Ba-Cu-O:Ag
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Critical Current Density for Y:123; [Y-Ba-Cu-O:Ag]
| Amount of Y211 (mol%) |
Mass Fraction of Ag (%) |
x of Zrx (formula units) |
Critical Current Density (kA/cm2) |
| -- |
0 |
-- |
13.1 |
| -- |
10 |
-- |
18.8 |
| -- |
15 |
-- |
16.0 |
| -- |
20 |
-- |
15.2 |
| -- |
25 |
-- |
8.3 |
Measurement Method: Vibrating sample magnetometer
"Magnetization curves were measured with a vibrating sample magnetometer... at 77 K using a magnetic field up to 1 T and a sweep rate of 0.1 T/min for the sample with a size of approximately 3 x 3 x 0.6 mm
3... the direction of a sample with regard to the magnetic field was chosen such that the larget hysteresis was observed in the M-H curve... The Bean critical state model may be applied to the evaluation (of the critical current)."
Cautions: Evaluated Data
Flexural Strength for Y:123; [Y-Ba-Cu-O:Ag]
| Amount of Y211 (mol%) |
Mass Fraction of Ag (%) |
x of Zrx (formula units) |
Flexural Strength (MPa) |
| -- |
10 |
-- |
32.0 |
| -- |
15 |
-- |
33.0 |
| -- |
20 |
-- |
36.3 |
| -- |
25 |
-- |
36.5 |
Measurement Method: Three-point bend
The authors cite "Testing Method for Flexural Strength of High Performance Ceramics: Japanese Industrial Standards," R1601 (1981), and summarize the procedure as follows. "The mechanical strength was evaluated by measuring the flexural strength... in the 3-point bending mode at room temperature with a span length of 14.7 mm and a cross-head speed of 0.5 mm/min. The size of the samples was 3.5 x 1 x 20 mm
3. A surface of the sample was polished in order to reduce cracks on the surface."
Cautions: Evaluated Data
Material Specification for Y:123; [Y-Ba-Cu-O]
Process: Melt Processed
Notes: "YBCO superconductors with and without Zr were prepared from an appropriate mixture of high-purity Y2O3, BaCO3, CuO and ZrO2 powders, which was uniaxially pressed into a pellet and calcined at 930 °C for 12 h in oxygen atmosphere. The composition was adjusted in the following two series: Zrx-YBa2Cu3O7-δ (type A) and ZrxYBa2+xCu3O7-δ (type B), where 0 ≤ x ≤ 0.8. The calcination was repeated three times... Ag metal powders (2 µm in diameter) were also mixed with the calcined YBCO powders and pressed into a pellet 20 mm in diameter and about 10 mm thick. The pellet thus obtained was heated to 1040 °C at a heating rate of 100 °C/h, and was held for 2 h. It was cooled to 1000 °C and then slowly cooled down to 940 °C at a rate of 1 °C/h, with subsequent furnace cooling to room temperature. The post annealing was added at 400-600 °C for 20-60 h for oxygen uptake. All heat treatments were performed in oxygen flowing atmosphere at an ambient pressure. The heat-treated sample was cut into a rectangular form using a slow speed diamond saw."
Formula: YBa2Cu3O7-y•qY2BaCuOz
Informal Name: Y:123
Chemical Family: Y-Ba-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Critical Current Density for Y:123; [Y-Ba-Cu-O]
| Amount of Y211 (mol%) |
Mass Fraction of Ag (%) |
x of Zrx (formula units) |
Critical Current Density (kA/cm2) |
| 9 |
-- |
-- |
24.0 |
| 14.2 |
-- |
-- |
28.7 |
| 25 |
-- |
-- |
33.0 |
| 40 |
-- |
-- |
50.1 |
| 50 |
-- |
-- |
64.8 |
| 60 |
-- |
-- |
46.3 |
| 67 |
-- |
-- |
41.1 |
Measurement Method: Vibrating sample magnetometer
"Magnetization curves were measured with a vibrating sample magnetometer... at 77 K using a magnetic field up to 1 T and a sweep rate of 0.1 T/min for the sample with a size of approximately 3 x 3 x 0.6 mm
3... the direction of a sample with regard to the magnetic field was chosen such that the larget hysteresis was observed in the M-H curve... The Bean critical state model may be applied to the evaluation (of the critical current)."
Cautions: Evaluated Data
Material Specification for Y:123; [Y-Ba-Cu-O:Ag]
Process: Melt Processed
Notes: "YBCO superconductors with and without Zr were prepared from an appropriate mixture of high-purity Y2O3, BaCO3, CuO and ZrO2 powders, which was uniaxially pressed into a pellet and calcined at 930 °C for 12 h in oxygen atmosphere. The composition was adjusted in the following two series: Zrx-YBa2Cu3O7-δ (type A) and ZrxYBa2+xCu3O7-δ (type B), where 0 ≤ x ≤ 0.8. The calcination was repeated three times... Ag metal powders (2 µm in diameter) were also mixed with the calcined YBCO powders and pressed into a pellet 20 mm in diameter and about 10 mm thick. The pellet thus obtained was heated to 1040 °C at a heating rate of 100 °C/h, and was held for 2 h. It was cooled to 1000 °C and then slowly cooled down to 940 °C at a rate of 1 °C/h, with subsequent furnace cooling to room temperature. The post annealing was added at 400-600 °C for 20-60 h for oxygen uptake. All heat treatments were performed in oxygen flowing atmosphere at an ambient pressure. The heat-treated sample was cut into a rectangular form using a slow speed diamond saw."
Formula: YBa2Cu3O7-y•pAg•qY2BaCuO2
Informal Name: Y:123
Chemical Family: Y-Ba-Cu-O:Ag
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Critical Current Density for Y:123; [Y-Ba-Cu-O:Ag]
| Amount of Y211 (mol%) |
Mass Fraction of Ag (%) |
x of Zrx (formula units) |
Critical Current Density (kA/cm2) |
| 16.7 |
10 |
-- |
44.7 |
| 20 |
10 |
-- |
23.9 |
| 25 |
10 |
-- |
44.7 |
Measurement Method: Vibrating sample magnetometer
"Magnetization curves were measured with a vibrating sample magnetometer... at 77 K using a magnetic field up to 1 T and a sweep rate of 0.1 T/min for the sample with a size of approximately 3 x 3 x 0.6 mm
3... the direction of a sample with regard to the magnetic field was chosen such that the larget hysteresis was observed in the M-H curve... The Bean critical state model may be applied to the evaluation (of the critical current)."
Cautions: Evaluated Data
Flexural Strength for Y:123; [Y-Ba-Cu-O:Ag]
| Amount of Y211 (mol%) |
Mass Fraction of Ag (%) |
x of Zrx (formula units) |
Flexural Strength (MPa) |
| 16.7 |
10 |
-- |
36.0 |
| 20 |
10 |
-- |
39.7 |
| 25 |
10 |
-- |
21.8 |
Measurement Method: Three-point bend
The authors cite "Testing Method for Flexural Strength of High Performance Ceramics: Japanese Industrial Standards," R1601 (1981), and summarize the procedure as follows. "The mechanical strength was evaluated by measuring the flexural strength... in the 3-point bending mode at room temperature with a span length of 14.7 mm and a cross-head speed of 0.5 mm/min. The size of the samples was 3.5 x 1 x 20 mm
3. A surface of the sample was polished in order to reduce cracks on the surface."
Cautions: Evaluated Data
