XRD, TGA and TMA Charts (No.111)
| No. | Name | Sampling date | Vein or deposit | Mining place | Mining company | Sampling place | Grade or sort |
|---|---|---|---|---|---|---|---|
| 111 | KRT__02A | November 13,1982 | Tomioka D. | Shiroiwasaki | Kiyama Tohseki | Shiroiwasaki | Good quality, SK14-18 |
| Colors of the milled samples | |||||||
|---|---|---|---|---|---|---|---|
| X | Y | Z | Whiteness (Hunter) | L | a | b | Whiteness (Lab) |
| 79.98 | 80.31 | 86.64 | 73.42 | 89.62 | 2.48 | 5.41 | 88.03 |
| Chemical compositions (wt%) | ||||||||
|---|---|---|---|---|---|---|---|---|
| SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | Na2O | K2O | Ig.loss |
| 74.64 | 15.17 | 0.52 | 0.04 | 0.13 | 0.32 | 3.93 | 4.11 | 1.08 |
| Mineral compositions (wt%) | |||||
|---|---|---|---|---|---|
| Q : Quartz | M : Sericite | K : Kaolin mineral | F : Feldspar | C : Calcite | S : Siderite |
| 36.71 | 32.42 | 0.76 | 29.60 | 0.00 | 0.51 |
| Results of TGA and Colors of the Powder Samples after Measuring | |||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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)
| 1.23 | 1.03 | 74.35 | 73.82 | 71.61 | 60.69 | 85.92 | 4.11 | 10.73 | 81.83
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| Results of TMA and Colors of the Sintered Samples after Measuring | ||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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) 45.1 | 9.21 | 1259 | 1294 | 1290 | 1435 | 15 | 57.45 | 58.90 | 60.59 | 51.35 | 76.75 | -0.69 | 6.91 | 75.73
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