XRD, TGA and TMA Charts (No.216)
No. | Name | Sampling date | Vein or deposit | Mining place | Mining company | Sampling place | Grade or sort |
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216 | OOY__09A | June 11,1981 | Ooyano D. | Ooyano | Hashimoto Tohseki | Waste dump of Amakusa pottery stone | Piece of griding stone |
Colors of the milled samples | |||||||
---|---|---|---|---|---|---|---|
X | Y | Z | Whiteness (Hunter) | L | a | b | Whiteness (Lab) |
85.40 | 86.54 | 94.41 | 80.01 | 93.03 | 1.07 | 4.95 | 91.38 |
Chemical compositions (wt%) | ||||||||
---|---|---|---|---|---|---|---|---|
SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | Na2O | K2O | Ig.loss |
72.91 | 15.52 | 0.47 | 0.07 | 2.33 | 0.19 | 0.07 | 3.14 | 5.01 |
Mineral compositions (wt%) | |||||
---|---|---|---|---|---|
Q : Quartz | M : Sericite | K : Kaolin mineral | F : Feldspar | C : Calcite | S : Siderite |
51.55 | 21.38 | 23.10 | 0.50 | 3.47 | 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)
| 5.56 | 4.89 | 77.00 | 77.32 | 82.78 | 70.15 | 87.93 | 2.43 | 5.74 | 86.42
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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) 47.9 | 7.99 | 1340 | 1345 | 1339 | 1494 | 18- | 65.70 | 67.17 | 71.57 | 60.65 | 81.96 | -0.33 | 5.59 | 81.11
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