XRD, TGA and TMA Charts (No.039)
No. | Name | Sampling date | Vein or deposit | Mining place | Mining company | Sampling place | Grade or sort |
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039 | USDH_20A | November 13,1982 | Sarayama V. | Denbeekoba | Ueda Tohseki | Upper level / right | Henshoku (discoloration), boundary of Shima (stripes) |
Colors of the milled samples | |||||||
---|---|---|---|---|---|---|---|
X | Y | Z | Whiteness (Hunter) | L | a | b | Whiteness (Lab) |
71.79 | 72.30 | 67.96 | 57.59 | 85.03 | 1.91 | 12.13 | 80.64 |
Chemical compositions (wt%) | ||||||||
---|---|---|---|---|---|---|---|---|
SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | Na2O | K2O | Ig.loss |
77.00 | 15.45 | 0.76 | 0.01 | 0.13 | 0.11 | 0.09 | 3.82 | 2.17 |
Mineral compositions (wt%) | |||||
---|---|---|---|---|---|
Q : Quartz | M : Sericite | K : Kaolin mineral | F : Feldspar | C : Calcite | S : Siderite |
50.99 | 43.85 | 3.72 | 1.00 | 0.37 | 0.08 |
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)
| 2.82 | 1.99 | 64.33 | 63.29 | 61.77 | 52.35 | 79.56 | 5.12 | 9.65 | 76.82
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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) 49.9 | 7.87 | 1382 | 1393 | 1386 | 1542 | 20+ | 53.83 | 55.14 | 59.29 | 50.25 | 74.26 | -0.55 | 4.64 | 73.84
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