Class information for:
Level 1: METALLURGICAL GRADE SILICON//SOLAR GRADE SILICON//SOLVENT REFINING

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
16327 660 20.6 53%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
2 4 MATERIALS SCIENCE, MULTIDISCIPLINARY//PHYSICS, APPLIED//PHYSICS, CONDENSED MATTER 2836879
6 3       PHYSICS, APPLIED//IEEE TRANSACTIONS ON ELECTRON DEVICES//SILICON 155028
1998 2             MULTICRYSTALLINE SILICON//IEEE JOURNAL OF PHOTOVOLTAICS//SOLAR CELLS 5531
16327 1                   METALLURGICAL GRADE SILICON//SOLAR GRADE SILICON//SOLVENT REFINING 660

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 METALLURGICAL GRADE SILICON authKW 2689836 9% 95% 61
2 SOLAR GRADE SILICON authKW 1460148 7% 66% 48
3 SOLVENT REFINING authKW 647702 2% 100% 14
4 SLAG REFINING authKW 604520 2% 93% 14
5 SILICON REFINING authKW 340671 1% 82% 9
6 ENGN VACUUM MET address 315514 5% 19% 36
7 SILICON PURIFICATION authKW 312280 1% 75% 9
8 ENGN SILICON MET SILICON MAT YUNNAN PRO address 296089 1% 80% 8
9 ELECTRON BEAM MELTING AND REFINING authKW 277586 1% 100% 6
10 SOLIDIFICATION REFINING authKW 231322 1% 100% 5

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Metallurgy & Metallurgical Engineering 6920 34% 0% 227
2 Materials Science, Multidisciplinary 4274 56% 0% 368
3 Physics, Applied 912 26% 0% 170
4 Energy & Fuels 730 11% 0% 75
5 Mining & Mineral Processing 487 3% 0% 19
6 Engineering, Chemical 289 10% 0% 66
7 Crystallography 286 6% 0% 41
8 METALLURGY & MINING 265 1% 0% 5
9 Mineralogy 143 2% 0% 15
10 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 105 2% 0% 12

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ENGN VACUUM MET 315514 5% 19% 36
2 ENGN SILICON MET SILICON MAT YUNNAN PRO 296089 1% 80% 8
3 PHOTOVOLTA SILICON BUSINESS PLANNING 185058 1% 100% 4
4 SOLAR ENERGY PHOTOVOLTA SYST LIAONING PRO 165227 1% 71% 5
5 ALUMNUS CHEM ENGN PL CHEM 92529 0% 100% 2
6 ENGN SILICON MET 92529 0% 100% 2
7 SILICON REFINING TEAM 92529 0% 100% 2
8 SIM UMR CNRS 92529 0% 100% 2
9 STATE COMPLEX NONFERROUS MET OURCES CL 92108 3% 9% 22
10 NONFERROUS VACUUM MET YUNNAN PROV 61685 0% 67% 2

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 SILICON 51125 3% 6% 18
2 METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE 32295 7% 1% 48
3 SOLAR ENERGY MATERIALS AND SOLAR CELLS 9083 6% 1% 39
4 HIGH TEMPERATURE MATERIALS AND PROCESSES 8785 2% 1% 15
5 SEPARATION AND PURIFICATION TECHNOLOGY 6311 4% 0% 29
6 JOM 4212 2% 1% 14
7 SOLAR CELLS 3091 1% 1% 8
8 VACUUM 3012 4% 0% 25
9 JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY 2839 1% 2% 4
10 SIEMENS FORSCHUNGS-UND ENTWICKLUNGSBERICHTE-SIEMENS RESEARCH AND DEVELOPMENT REPORTS 2674 1% 1% 4

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 METALLURGICAL GRADE SILICON 2689836 9% 95% 61 Search METALLURGICAL+GRADE+SILICON Search METALLURGICAL+GRADE+SILICON
2 SOLAR GRADE SILICON 1460148 7% 66% 48 Search SOLAR+GRADE+SILICON Search SOLAR+GRADE+SILICON
3 SOLVENT REFINING 647702 2% 100% 14 Search SOLVENT+REFINING Search SOLVENT+REFINING
4 SLAG REFINING 604520 2% 93% 14 Search SLAG+REFINING Search SLAG+REFINING
5 SILICON REFINING 340671 1% 82% 9 Search SILICON+REFINING Search SILICON+REFINING
6 SILICON PURIFICATION 312280 1% 75% 9 Search SILICON+PURIFICATION Search SILICON+PURIFICATION
7 ELECTRON BEAM MELTING AND REFINING 277586 1% 100% 6 Search ELECTRON+BEAM+MELTING+AND+REFINING Search ELECTRON+BEAM+MELTING+AND+REFINING
8 SOLIDIFICATION REFINING 231322 1% 100% 5 Search SOLIDIFICATION+REFINING Search SOLIDIFICATION+REFINING
9 FRACTIONAL MELTING 208181 1% 50% 9 Search FRACTIONAL+MELTING Search FRACTIONAL+MELTING
10 METALLURGICAL SILICON 185050 1% 50% 8 Search METALLURGICAL+SILICON Search METALLURGICAL+SILICON

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 LEI, Y , MA, WH , LV, GQ , WEI, KX , LI, SY , MORITA, K , (2017) PURIFICATION OF METALLURGICAL-GRADE SILICON USING ZIRCONIUM AS AN IMPURITY GETTER.SEPARATION AND PURIFICATION TECHNOLOGY. VOL. 173. ISSUE . P. 364 -371 33 100% 0
2 TAN, Y , SHI, S , JIANG, DC , (2015) PROGRESS IN RESEARCH AND DEVELOPMENT OF SOLAR-GRADE SILICON PREPARATION BY ELECTRON BEAM MELTING.JOURNAL OF INORGANIC MATERIALS. VOL. 30. ISSUE 8. P. 785 -792 38 88% 0
3 JOHNSTON, MD , KHAJAVI, LT , LI, M , SOKHANVARAN, S , BARATI, M , (2012) HIGH-TEMPERATURE REFINING OF METALLURGICAL-GRADE SILICON: A REVIEW.JOM. VOL. 64. ISSUE 8. P. 935-945 44 75% 19
4 YOSHIKAWA, T , MORITA, K , (2012) AN EVOLVING METHOD FOR SOLAR-GRADE SILICON PRODUCTION: SOLVENT REFINING.JOM. VOL. 64. ISSUE 8. P. 946-951 32 100% 22
5 SASAKI, H , KOBASHI, Y , NAGAI, T , MAEDA, M , (2013) APPLICATION OF ELECTRON BEAM MELTING TO THE REMOVAL OF PHOSPHORUS FROM SILICON: TOWARD PRODUCTION OF SOLAR-GRADE SILICON BY METALLURGICAL PROCESSES.ADVANCES IN MATERIALS SCIENCE AND ENGINEERING. VOL. . ISSUE . P. - 35 92% 5
6 MA, XD , LEI, Y , YOSHIKAWA, T , ZHAO, BJ , MORITA, K , (2015) EFFECT OF SOLIDIFICATION CONDITIONS ON THE SILICON GROWTH AND REFINING USING SI-SN MELT.JOURNAL OF CRYSTAL GROWTH. VOL. 430. ISSUE . P. 98 -102 32 97% 1
7 LAI, HX , HUANG, LQ , LU, CH , FANG, M , MA, WH , XING, PF , LI, JT , LUO, XT , (2015) LEACHING BEHAVIOR OF IMPURITIES IN CA-ALLOYED METALLURGICAL GRADE SILICON.HYDROMETALLURGY. VOL. 156. ISSUE . P. 173 -181 29 97% 1
8 WANG, FM , WU, JJ , MA, WH , XU, M , LEI, Y , YANG, B , (2016) REMOVAL OF IMPURITIES FROM METALLURGICAL GRADE SILICON BY ADDITION OF ZNO TO CALCIUM SILICATE SLAG.SEPARATION AND PURIFICATION TECHNOLOGY. VOL. 170. ISSUE . P. 248 -255 29 94% 0
9 HUANG, LQ , LAI, HX , LU, CH , FANG, M , MA, WH , XING, PF , LI, JT , LUO, XT , (2016) ENHANCEMENT IN EXTRACTION OF BORON AND PHOSPHORUS FROM METALLURGICAL GRADE SILICON BY COPPER ALLOYING AND AQUA REGIA LEACHING.HYDROMETALLURGY. VOL. 161. ISSUE . P. 14 -21 25 96% 1
10 MA, XD , YOSHIKAWA, T , MORITA, K , (2014) PURIFICATION OF METALLURGICAL GRADE SI COMBINING SI-SN SOLVENT REFINING WITH SLAG TREATMENT.SEPARATION AND PURIFICATION TECHNOLOGY. VOL. 125. ISSUE . P. 264-268 26 96% 6

Classes with closest relation at Level 1


Rank Class id link
1 6450 MULTICRYSTALLINE SILICON//PHOTOLUMINESCENCE IMAGING//GETTERING
2 24933 SILICON ELECTRODEPOSITION//POROUS POLYSILICON//BALLISTIC EMISSION
3 27838 PAFC SUBSTRATE//RF GLOW DISCHARGED PLASMA//SOLAR GRADE SILICON PRODUCTION
4 25345 MOLECULAR INTERACTION VOLUME MODEL//VLE PHASE DIAGRAM//VACUUM DISTILLATION
5 28731 B NB TI//ULTRA HIGH PURITY NIOBIUM//0 0 TRANSITION
6 24666 ELECTROSLAG REMELTING//ELECTROSLAG REMELTING PROCESS//ISM PROCESS
7 25610 ZONE REFINING//PLASMA ARC MELTING//HYDROGEN PLASMA ARC MELTING
8 23692 JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION//AL CU SI SYSTEM//ALUMINIUM BATH
9 21221 WIRE SAWING//MAKYOH TOPOGRAPHY//MULTI WIRE SAWING
10 12057 ELECTRO DEOXIDATION//MOLTEN SALT ELECTROLYSIS//METALLOTHERMIC REDUCTION

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