Selected thermoplastic bearing materials for use at elevated temperatures

Hager, Anastasia; Friedrich, K.; Junghans, R.

doi:10.1016/0043-1648(93)90062-q

Cited by 23 publications

(9 citation statements)

References 7 publications

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“…These applications of course require corrosion resistant counterparts as well. However, the tribological characteristic values are usually derived from dry laboratory tests against the martensitic bearing steel 100Cr6 [11][12][13][14][15]-a material, which can not be used in water because of lacking corrosion resistance. Nevertheless, only few investigations focus on the wear of polymer compounds under aqueous conditions [16,17] but no study compares the effect of different fillers and counterparts.…”

Section: Introductionmentioning

confidence: 99%

On the effect of counterface material and aqueous environment on the sliding wear of various PEEK compounds

et al. 2005

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Polyetheretherketone (PEEK) compounds containing carbon fibres (CF), glass fibres (GF), PTFE, and graphite, respectively, were exposed to unidirectional sliding against various counterparts (100Cr6, X5CrNi18-10, alumina, and bronze). Some of these tests were repeated in water. The stainless steel revealed the best results under dry conditions, whereas alumina was the best counterpart in water. The compound containing GF plus PTFE performed best under dry conditions. Under wet conditions, CF were superior to GF, which react very susceptibly to water. The aqueous environment usually accelerated the compound wear. Only in case of CF containing compounds sliding against alumina, the water lubrication reduced the wear rate.

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Section: Introductionmentioning

confidence: 99%

On the effect of counterface material and aqueous environment on the sliding wear of various PEEK compounds

et al. 2005

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“…These applications of course require corrosion resistant counterparts as well. However, the tribological characteristic values are usually derived from dry laboratory tests against the martensitic bearing steel 100Cr6 [11][12][13][14][15]-a material, which cannot be used in water because of lacking corrosion resistance. Nevertheless, only few investigations focussed on the wear of polymer compounds under aqueous conditions against corrosion resistant counterparts [16,17].…”

Section: Introductionmentioning

confidence: 99%

On the Effect of Counterface Material and Aqueous Environment on the Sliding Wear of Carbon Fibre Reinforced Polyetheretherketone (PEEK)

et al. 2005

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Carbon fibre reinforced Polyetheretherketone (PEEK/CF) was exposed to unidirectional sliding at a speed of 28 mm/s against various counterparts. Some of these tests were repeated in water. The bearing steel produced the worst results. In this case, the carbon fibre reinforcement even increased the wear compared to unreinforced PEEK. Most other counterparts led to wear rates almost a factor 100 lower. Chemically inert hard counterparts performed best. The lowest wear rates were found against DLC. An aqueous environment usually accelerated the wear process. Only in case of alumina and DLC counterparts, the water lubrication reduced the wear rate. The addition of graphite plus Polytetraflourethylene (PTFE) to PEEK/CF reduced the sensitivity to the operation conditions.

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“…Polyesterimide and polyimides compared with other sliding polymers have higher wear resistance (particularly at high temperatures) and high friction coefficient against steel 0,6-0,8 [12]. The lubricating additives considerably reduce the friction coefficient to a value of 0,2-0,3, similarly as in other bearing materials [12,22].…”

Section: Introductionmentioning

confidence: 97%

“…Thermosetting polyesterimide (PEI) with good electrical insulating, mechanical and thermal properties is an excellent matrix for such composites. Frictional behaviour of PEI against steel became as brittle as glassy polymers such as: epoxy, polyimides or polyesters [9][10][11][12][13]20,21]. Polyesterimide and polyimides compared with other sliding polymers have higher wear resistance (particularly at high temperatures) and high friction coefficient against steel 0,6-0,8 [12].…”

Section: Introductionmentioning

confidence: 99%