XRD, TGA and TMA Charts (No.023)
No. | Name | Sampling date | Vein or deposit | Mining place | Mining company | Sampling place | Grade or sort |
---|---|---|---|---|---|---|---|
023 | USDH_04S | March 29, 1980 | Sarayama V. | Denbeekoba | Ueda Tohseki | ? | Henshoku (discoloration) |
Colors of the milled samples | |||||||
---|---|---|---|---|---|---|---|
X | Y | Z | Whiteness (Hunter) | L | a | b | Whiteness (Lab) |
56.07 | 55.74 | 53.68 | 45.49 | 74.66 | 3.40 | 9.63 | 72.68 |
Chemical compositions (wt%) | ||||||||
---|---|---|---|---|---|---|---|---|
SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | Na2O | K2O | Ig.loss |
77.63 | 14.51 | 1.19 | 0.01 | 0.14 | 0.10 | 0.09 | 3.80 | 2.13 |
Mineral compositions (wt%) | |||||
---|---|---|---|---|---|
Q : Quartz | M : Sericite | K : Kaolin mineral | F : Feldspar | C : Calcite | S : Siderite |
51.64 | 46.52 | 0.76 | 0.67 | 0.00 | 0.41 |
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)
| 2.79 | 1.91 | 52.77 | 51.92 | 51.30 | 45.49 | 72.06 | 4.63 | 8.23 | 70.50
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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) 49.1 | 6.45 | 1374 | 1380 | 1373 | 1530 | 20 | 43.21 | 43.94 | 46.08 | 39.05 | 66.29 | 0.35 | 5.19 | 65.89
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