Class information for:
Level 1: ZDDP//ANTIWEAR ADDITIVES//ZINC DIALKYLDITHIOPHOSPHATE

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
4127 1767 20.9 44%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
1241 8517 ELASTOHYDRODYNAMIC LUBRICATION//TRIBOLOGY TRANSACTIONS//LUBRICATION ENGINEERING

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 ZDDP Author keyword 142 76% 6% 100
2 ANTIWEAR ADDITIVES Author keyword 42 53% 3% 55
3 ZINC DIALKYLDITHIOPHOSPHATE Author keyword 40 79% 1% 26
4 ANTIWEAR Author keyword 38 51% 3% 54
5 ZINC DITHIOPHOSPHATE Author keyword 29 88% 1% 14
6 ZNDTP Author keyword 27 76% 1% 19
7 BOUNDARY LUBRICATION Author keyword 25 18% 7% 124
8 EXTREME PRESSURE LUBRICATION Author keyword 23 86% 1% 12
9 TRIBOFILM Author keyword 23 36% 3% 52
10 ULTRAHIGH VACUUM TRIBOMETER Author keyword 23 100% 1% 10

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class		 LCSH search Wikipedia search
1 ZDDP 142 76% 6% 100 Search ZDDP Search ZDDP
2 ANTIWEAR ADDITIVES 42 53% 3% 55 Search ANTIWEAR+ADDITIVES Search ANTIWEAR+ADDITIVES
3 ZINC DIALKYLDITHIOPHOSPHATE 40 79% 1% 26 Search ZINC+DIALKYLDITHIOPHOSPHATE Search ZINC+DIALKYLDITHIOPHOSPHATE
4 ANTIWEAR 38 51% 3% 54 Search ANTIWEAR Search ANTIWEAR
5 ZINC DITHIOPHOSPHATE 29 88% 1% 14 Search ZINC+DITHIOPHOSPHATE Search ZINC+DITHIOPHOSPHATE
6 ZNDTP 27 76% 1% 19 Search ZNDTP Search ZNDTP
7 BOUNDARY LUBRICATION 25 18% 7% 124 Search BOUNDARY+LUBRICATION Search BOUNDARY+LUBRICATION
8 EXTREME PRESSURE LUBRICATION 23 86% 1% 12 Search EXTREME+PRESSURE+LUBRICATION Search EXTREME+PRESSURE+LUBRICATION
9 TRIBOFILM 23 36% 3% 52 Search TRIBOFILM Search TRIBOFILM
10 ULTRAHIGH VACUUM TRIBOMETER 23 100% 1% 10 Search ULTRAHIGH+VACUUM+TRIBOMETER Search ULTRAHIGH+VACUUM+TRIBOMETER

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 ANTIWEAR FILMS 269 90% 7% 117
2 ZDDP 176 77% 7% 121
3 ZINC DIALKYL DITHIOPHOSPHATE 72 91% 2% 30
4 ZINC DIALKYLDITHIOPHOSPHATE 72 91% 2% 30
5 DITHIOPHOSPHATE 58 64% 3% 56
6 BASIC ZDDPS 48 100% 1% 17
7 ZDDP ANTIWEAR FILMS 48 91% 1% 20
8 EXTREME PRESSURE 47 84% 1% 26
9 ZNDTP 38 84% 1% 21
10 FRICTION ENHANCING PROPERTIES 37 100% 1% 14

Journals


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 LUBRICATION ENGINEERING 21 14% 8% 141
2 ASLE TRANSACTIONS 16 18% 5% 83
3 LUBRICATION SCIENCE 3 11% 1% 25

Reviews


Title Publ. year Cit. Active references % act. ref.
to same field
The history and mechanisms of ZDDP 2004 227 70 93%
Low- and zero-sulphated ash, phosphorus and sulphur anti-wear additives for engine oils 2008 57 100 69%
Review of the lubrication of metallic surfaces by zinc dialkyl-dithlophosphates 2005 140 113 86%
A review of zinc dialkyldithiophosphates (ZDDPS): characterisation and role in the lubricating oil 2001 123 37 95%
Boron in Tribology: From Borates to Ionic Liquids 2013 9 170 25%
Surface chemistry in tribology 2002 28 69 61%
Surface analytical science and automotive lubrication 2000 19 31 61%
Film Formation of Non-Phosphorus Wear Inhibitors 2010 0 7 100%
Voluminosities of EGR Engine Soot and Carbon Black: A Bench Test for Fresh Engine Oils 2009 0 4 100%
Bore polish 1998 1 7 100%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 AVIAT OIL 12 86% 0.3% 6
2 IMPERIAL OIL PROD 11 100% 0.3% 6
3 LUBRICANTS 6 26% 1.1% 20
4 ORONITE ADDIT 6 100% 0.2% 4
5 UMR 55 13 6 100% 0.2% 4
6 SOLID LUBRICAT 5 16% 1.6% 29
7 PETR PL ENGN 5 63% 0.3% 5
8 TRIBOL SYST DYNAM 3 33% 0.5% 8
9 ORONITE GLOBAL TECHNOL 2 44% 0.2% 4
10 DIPARTIMENTO GENIO NAVALE 2 67% 0.1% 2

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000192084 OIL CONDITION MONITORING//INTERNAL COMBUSTION ENGINE OILS//ADDITIVE DEPLETION
2 0.0000184517 OVERBASED DETERGENTS//COMBUSTION CHAMBER DEPOSITS//ORONITE GLOBAL TECHNOL
3 0.0000172317 SCUFFING//AL390 T6//CARBON DIOXIDE REFRIGERANT
4 0.0000142784 GRP CIENCIA MAT INGN MET//INGN MAT FABRICAC//MICRO NANO FRICTION
5 0.0000123199 ESTOLIDES//BIOLUBRICANT//LUBRICATING GREASE
6 0.0000096298 PERFLUOROPOLYALKYLETHER//PERFLUOROPOLYALKYL ETHER//SYNTHETIC LUBRICANTS
7 0.0000089705 TRIBOLOGY & LUBRICATION TECHNOLOGY//CONSULTING CO//ADSORBED LUBRICANT
8 0.0000083812 PISTON RING//PISTON SKIRT//PISTON RINGS
9 0.0000076556 MAT INTER ES//NANO OIL//INORGANIC FULLERENE LIKE
10 0.0000065598 SUR E TECHNOL TRIBOL SECT//WERKSTOFFKUNDE 2//WATER LUBRICATION