| 1. |
- Engqvist, H, et al.
(författare)
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A study of grain boundaries in a binderless cemented carbide
- 1998
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Ingår i: International journal of refractory metals & hard materials. - : ELSEVIER SCI LTD. - 0263-4368. ; 16:4-6, s. 309-313
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The microstructure of a binderless cemented carbide with <0.5 wt% Co has been analysed using transmission electron microscopy (TEM) in combination with an electron energy loss spectroscopy (EELS) detector and an imaging filter. In particular, microstructu
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| 2. |
- Engqvist, H, et al.
(författare)
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Microstructure and abrasive wear of binderless carbides
- 2000
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Ingår i: JOURNAL OF THE AMERICAN CERAMIC SOCIETY. - : AMER CERAMIC SOC. - 0002-7820. ; 83:10, s. 2491-2496
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Tidskriftsartikel (refereegranskat)abstract
- The microstructure and the abrasive wear characteristics of two binderless carbides (WC-Mo2C and WC-TiC-TaC) have been studied. The microstructural analysis identified differences in the amount of mixing between the gamma-phase and WC. Mo2C and WC showed
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| 3. |
- Engqvist, H, et al.
(författare)
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Tribofilm formation on cemented carbides in dry sliding conformal contact
- 2000
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Ingår i: WEAR. - : ELSEVIER SCIENCE SA. - 0043-1648. ; 239:2, s. 219-228
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Tidskriftsartikel (refereegranskat)abstract
- The friction properties and the tribofilm formation of a binderless cemented carbide and two conventional cemented carbides have been evaluated in an unlubricated sliding contact in either air or nitrogen surroundings. A continuously varied normal load an
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| 4. |
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| 5. |
- Grandfield, Kathryn, 1986-, et al.
(författare)
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Ultrastructural characterisation of the hydroxyapatite–coated pedicle screw and human bone interface
- 2012
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Ingår i: International Journal of Nano and Biomaterials. - 1752-8933 .- 1752-8941. ; 4:1, s. 1-11
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Tidskriftsartikel (refereegranskat)abstract
- The early fixation of pedicle screws is crucial for improving spinal stabilisation. Firm and immediate fixation between pedicle screws and bone prevents aseptic loosening and implant failure. Coating with hydroxyapatite is a possible method to improve the fixation of metallic implants in bone. In this study, scanning transmission electron microscopy (STEM) has been used to investigate the ultrastructure of the plasma–sprayed hydroxyapatite coating and human bone interface in detail. Focused ion beam sample preparation also enabled the investigation of the bone–lacunae interface. An intimate contact and elemental analysis between bone and HA coatings suggests bioactive fixation. Therefore, coating with hydroxyapatite leads to enhanced biocompatibility at the ultrastructural level and may lead to improved early and long–term fixation of pedicle screws.
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