XRD, TGA and TMA Charts (No.042)
No. | Name | Sampling date | Vein or deposit | Mining place | Mining company | Sampling place | Grade or sort |
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042 | USI1_01A | March 29,1980 | Sarayama V. | Iguchiyama | Ueda Tohseki | ? | First grade |
Colors of the milled samples | |||||||
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X | Y | Z | Whiteness (Hunter) | L | a | b | Whiteness (Lab) |
86.12 | 87.77 | 94.12 | 79.76 | 93.69 | 0.14 | 6.02 | 91.28 |
Chemical compositions (wt%) | ||||||||
---|---|---|---|---|---|---|---|---|
SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | Na2O | K2O | Ig.loss |
80.85 | 13.65 | 0.30 | 0.01 | 0.03 | 0.09 | 0.11 | 2.70 | 2.03 |
Mineral compositions (wt%) | |||||
---|---|---|---|---|---|
Q : Quartz | M : Sericite | K : Kaolin mineral | F : Feldspar | C : Calcite | S : Siderite |
59.88 | 31.17 | 8.28 | 0.67 | 0.00 | 0.00 |
Results of TGA and Colors of the Powder Samples after Measuring | |||||||||||||||||||||||||||||
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The conditions for TGA were sample weight : about 180mg, heating rate : 20°C/min, ended temperature : 1000°C.
LT : Total weight loss, L400 : Weight loss of 400-1000°C. LT (wt%) | L400 (wt%) | X | Y | Z | Whiteness (Hunter) | L | a | b | Whiteness (Lab)
| 2.39 | 1.94 | 85.17 | 86.06 | 92.12 | 78.07 | 92.77 | 1.53 | 6.06 | 90.44
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Results of TMA and Colors of the Sintered Samples after Measuring | ||||||||||||||||||||||||||||||||||||||||||||
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The conditions for TMA were compaction pressure : 250MPa, pellet diameter : 10mm, thickness : about 3mm, heating rate : 10°C/min, loading : 10g.
W10 : Contents of particles larger than 10µm, SMax : Maximum shrinkage, T0 : Temperature at the maximum shrinkage, T5 : Temperature at the expansion coefficient becomes 0.0005/°C, TS5 : Temperature rectified using the correlative equation, TSK : Nominal temperature equivalent to its SK. W10 | (wt%) SMax | (%) T0 | (°C) T5 | (°C) TS5 | (°C) TSK | (°C) SK | X | Y | Z | W | (Hunter) L | a | b | W | (Lab) 44.9 | 7.98 | 1464 | 1477 | 1473 | 1609 | 27 | 70.68 | 72.40 | 81.92 | 69.42 | 85.09 | -0.63 | 2.48 | 84.87
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