XRD, TGA and TMA Charts (No.005)
No. | Name | Sampling date | Vein or deposit | Mining place | Mining company | Sampling place | Grade or sort |
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005 | USGH_05A | March 29, 1980 | Sarayama V. | Gohtsu | Ueda Tohseki | North | Hensyoku/ Tamamono (discoloration), Siderite (+) |
Colors of the milled samples | |||||||
---|---|---|---|---|---|---|---|
X | Y | Z | Whiteness (Hunter) | L | a | b | Whiteness (Lab) |
69.32 | 67.84 | 63.51 | 53.82 | 82.37 | 6.09 | 11.94 | 77.85 |
Chemical compositions (wt%) | ||||||||
---|---|---|---|---|---|---|---|---|
SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | Na2O | K2O | Ig.loss |
74.81 | 14.78 | 0.93 | 0.01 | 1.18 | 0.12 | 2.61 | 2.12 | 3.16 |
Mineral compositions (wt%) | |||||
---|---|---|---|---|---|
Q : Quartz | M : Sericite | K : Kaolin mineral | F : Feldspar | C : Calcite | S : Siderite |
40.40 | 25.77 | 11.93 | 19.81 | 2.09 | 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)
| 3.62 | 2.98 | 62.66 | 60.52 | 57.10 | 48.39 | 77.79 | 7.63 | 10.94 | 74.10
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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) 43.3 | 6.88 | 1263 | 1269 | 1267 | 1403 | 14- | 46.03 | 46.33 | 47.98 | 40.66 | 68.07 | 1.60 | 5.85 | 67.50
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