Class information for:
Level 2: ZDDP//LUBRICATION ENGINEERING//TRIBOLOGY & LUBRICATION TECHNOLOGY

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
2188 4905 20.9 46%


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
16 4 ENGINEERING, CIVIL//CONSTRUCTION & BUILDING TECHNOLOGY//MECHANICS 627508
301 3       JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME//ENGINEERING, MECHANICAL//WEAR 40881
2188 2             ZDDP//LUBRICATION ENGINEERING//TRIBOLOGY & LUBRICATION TECHNOLOGY 4905
4125 1                   ZDDP//ANTIWEAR ADDITIVES//ZINC DIALKYLDITHIOPHOSPHATE 1843
9700 1                   BIOLUBRICANT//ESTOLIDES//IN SITU EPOXIDATION 1129
20522 1                   FERROGRAPHY//WEAR PARTICLES//WEAR PARTICLE ANALYSIS 456
22566 1                   LUBRICATING GREASE//GREASE//GREASE LUBRICATION 377
24638 1                   OIL PLICAT MANAGEMENT//OIL CONDITION MONITORING//INTERNAL COMBUSTION ENGINE OILS 305
30169 1                   TRIBOLOGY & LUBRICATION TECHNOLOGY//CONSULTING CO//ADDITIVE PRODUCTION TECHNOLOGY 173
31040 1                   COMBUSTION CHAMBER DEPOSITS//ELECTROSTATIC FILTER//ANILINOSILANES 159
31051 1                   ELECTRICAL PITTING//LIMIT CURRENT DENSITY//DIRECT CURRENT VOLTAGE 159
31400 1                   JOURNAL OF JAPAN SOCIETY OF LUBRICATION ENGINEERS//CONTACT FATIGUE CRACK FORMATION//DISCONTINUOUS RUBBING 153
31552 1                   OVERBASED DETERGENT//LUBRICANT DETERGENT//POLYBUTENYLSUCCINIMIDE 151

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 ZDDP authKW 564138 2% 77% 117
2 LUBRICATION ENGINEERING journal 472731 6% 28% 276
3 TRIBOLOGY & LUBRICATION TECHNOLOGY journal 453200 4% 35% 211
4 ANTIWEAR ADDITIVES authKW 362292 2% 61% 95
5 BIOLUBRICANT authKW 298926 1% 69% 70
6 ANTIWEAR authKW 294186 2% 51% 92
7 LUBRICATING GREASE authKW 276961 1% 78% 57
8 ESTOLIDES authKW 265129 1% 77% 55
9 ZINC DIALKYLDITHIOPHOSPHATE authKW 233569 1% 89% 42
10 FERROGRAPHY authKW 225617 1% 84% 43

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 Engineering, Mechanical 144250 55% 1% 2694
2 Engineering, Chemical 7758 18% 0% 861
3 Engineering, Petroleum 2629 2% 0% 119
4 Materials Science, Multidisciplinary 1150 14% 0% 684
5 Chemistry, Applied 941 5% 0% 239
6 Agricultural Engineering 823 2% 0% 89
7 Food Science & Technology 546 5% 0% 244
8 Energy & Fuels 536 4% 0% 208
9 Materials Science, Coatings & Films 235 2% 0% 101
10 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 197 1% 0% 49

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 LUBRICANTS 72018 1% 37% 31
2 ORONITE GLOBAL TECHNOL 44254 0% 89% 8
3 PRO2TECS CHEM PROC PROD TECHNOL 43564 0% 100% 7
4 BIOOILS UNIT 40700 0% 27% 24
5 CHEM PROC PROD TECHNOL PRO2TECS 37341 0% 100% 6
6 IMPERIAL OIL PROD 37341 0% 100% 6
7 TRIBOL 33263 1% 7% 73
8 SOLID LUBRICAT 32452 1% 17% 31
9 BIO FUELS 32005 0% 86% 6
10 AVIAT OIL 28003 0% 75% 6

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 LUBRICATION ENGINEERING 472731 6% 28% 276
2 TRIBOLOGY & LUBRICATION TECHNOLOGY 453200 4% 35% 211
3 TRIBOLOGY TRANSACTIONS 213960 6% 11% 305
4 TRIBOLOGY INTERNATIONAL 141877 7% 7% 328
5 TRIBOLOGY LETTERS 140578 5% 10% 238
6 ASLE TRANSACTIONS 140294 2% 22% 102
7 INDUSTRIAL LUBRICATION AND TRIBOLOGY 131866 3% 17% 128
8 WEAR 114339 9% 4% 448
9 LUBRICATION SCIENCE 94144 1% 23% 65
10 JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS 93441 3% 9% 163

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 ZDDP 564138 2% 77% 117 Search ZDDP Search ZDDP
2 ANTIWEAR ADDITIVES 362292 2% 61% 95 Search ANTIWEAR+ADDITIVES Search ANTIWEAR+ADDITIVES
3 BIOLUBRICANT 298926 1% 69% 70 Search BIOLUBRICANT Search BIOLUBRICANT
4 ANTIWEAR 294186 2% 51% 92 Search ANTIWEAR Search ANTIWEAR
5 LUBRICATING GREASE 276961 1% 78% 57 Search LUBRICATING+GREASE Search LUBRICATING+GREASE
6 ESTOLIDES 265129 1% 77% 55 Search ESTOLIDES Search ESTOLIDES
7 ZINC DIALKYLDITHIOPHOSPHATE 233569 1% 89% 42 Search ZINC+DIALKYLDITHIOPHOSPHATE Search ZINC+DIALKYLDITHIOPHOSPHATE
8 FERROGRAPHY 225617 1% 84% 43 Search FERROGRAPHY Search FERROGRAPHY
9 BOUNDARY LUBRICATION 225101 3% 24% 154 Search BOUNDARY+LUBRICATION Search BOUNDARY+LUBRICATION
10 LUBRICANT 216791 4% 17% 211 Search LUBRICANT Search LUBRICANT

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 NICHOLLS, MA , DO, T , NORTON, PR , KASRAI, M , BANCROFT, GM , (2005) REVIEW OF THE LUBRICATION OF METALLIC SURFACES BY ZINC DIALKYL-DITHLOPHOSPHATES.TRIBOLOGY INTERNATIONAL. VOL. 38. ISSUE 1. P. 15-39 96 85% 161
2 SPIKES, H , (2004) THE HISTORY AND MECHANISMS OF ZDDP.TRIBOLOGY LETTERS. VOL. 17. ISSUE 3. P. 469-489 65 93% 287
3 MCNUTT, J , HE, Q , (2016) DEVELOPMENT OF BIOLUBRICANTS FROM VEGETABLE OILS VIA CHEMICAL MODIFICATION.JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY. VOL. 36. ISSUE . P. 1 -12 66 86% 1
4 SONI, S , AGARWAL, M , (2014) LUBRICANTS FROM RENEWABLE ENERGY SOURCES - A REVIEW.GREEN CHEMISTRY LETTERS AND REVIEWS. VOL. 7. ISSUE 4. P. 359 -382 75 74% 5
5 SPIKES, H , (2008) LOW- AND ZERO-SULPHATED ASH, PHOSPHORUS AND SULPHUR ANTI-WEAR ADDITIVES FOR ENGINE OILS.LUBRICATION SCIENCE. VOL. 20. ISSUE 2. P. 103-136 70 70% 76
6 MORINA, A , NEVILLE, A , (2007) TRIBOFILMS: ASPECTS OF FORMATION, STABILITY AND REMOVAL.JOURNAL OF PHYSICS D-APPLIED PHYSICS. VOL. 40. ISSUE 18. P. 5476 -5487 51 100% 12
7 SHARMA, V , ERDEMIR, A , ASWATH, PB , (2015) AN ANALYTICAL STUDY OF TRIBOFILMS GENERATED BY THE INTERACTION OF ASHLESS ANTIWEAR ADDITIVES WITH ZDDP USING XANES AND NANO-INDENTATION.TRIBOLOGY INTERNATIONAL. VOL. 82. ISSUE . P. 43 -57 41 93% 3
8 MOSEY, NJ , WOO, TK , KASRAI, M , NORTON, PR , BANCROFT, GM , MUSER, MH , (2006) INTERPRETATION OF EXPERIMENTS ON ZDDP ANTI-WEAR FILMS THROUGH PRESSURE-INDUCED CROSS-LINKING.TRIBOLOGY LETTERS. VOL. 24. ISSUE 2. P. 105-114 48 86% 33
9 BONGFA, B , SYAHRULLAIL, S , HAMID, MKA , SAMIN, PM , (2016) SUITABLE ADDITIVES FOR VEGETABLE OIL-BASED AUTOMOTIVE SHOCK ABSORBER FLUIDS: AN OVERVIEW.LUBRICATION SCIENCE. VOL. 28. ISSUE 6. P. 381 -404 44 73% 0
10 GOSVAMI, NN , BARES, JA , MANGOLINI, F , KONICEK, AR , YABLON, DG , CARPICK, RW , (2015) MECHANISMS OF ANTIWEAR TRIBOFILM GROWTH REVEALED IN SITU BY SINGLE-ASPERITY SLIDING CONTACTS.SCIENCE. VOL. 348. ISSUE 6230. P. 102 -106 27 84% 27

Classes with closest relation at Level 2


Rank Class id link
1 362 WEAR//JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME//FRETTING FATIGUE
2 3757 CAMELINA SATIVA//CAMELINA//FALSE FLAX
3 1134 BIODIESEL//TRANSESTERIFICATION//PLANT STEROLS
4 2816 HEAD DISK INTERFACE//COMP MECH//PERFLUOROPOLYETHER
5 3371 STEAM CRACKING//THERMOPHYS PROPERTIES//THERMAL CRACKING
6 840 POLYURETHANE//SHAPE MEMORY POLYMER//POLYMER SCIENCE
7 778 DIESEL ENGINE//EMISSIONS//ENGINE PERFORMANCE
8 4099 ALKYL GLYCINATES//PRE EQUILIBRIUM KINETICS//TG AND DTG ANALYSIS
9 3213 SIMMONDSIN//SUGAR ESTER//OLESTRA
10 3773 VEGETABLE OIL HYDROGENATION//OTONEUROLOGY//CHLOROPHYLL ANALYSIS

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