Formation of twins in AlON material and its effects on the Vickers hardness and fracture toughness

Ding, Maomao; Wang, Tun; Maerz, Benjamin; Robertson, Stuart; Sun, Zehan; Fan, Lingcong; Shi, Ying; Wu, Houzheng

doi:10.1016/j.ceramint.2019.07.089

Cited by 20 publications

(2 citation statements)

References 41 publications

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“…where P is the indentation load (kgf), and d is the average length of the diagonal indentation (mm) (Ding et al 2019). As shown in Figure S5, the composite exhibited a surface hardness of 19.2 HV, which was higher than that of neat PA12 (17.7 HV).…”

Section: Surface Propertiesmentioning

confidence: 99%

“…Note that the indentation depth of the composite (259.8 μm) was shallower than that of neat PA12 (469.7 μm) (Figure 4(b) and (d) and Figure S4), suggesting an increased resistance to external forces. To accurately determine the surface hardness of the samples, the Vickers hardness values (HV) were calculated using the following equation (Ding et al 2019):…”

Section: Surface Propertiesmentioning

confidence: 99%

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A detailed evaluation of surface, thermal, and flammable properties of polyamide 12/glass beads composites fabricated by multi jet fusion

Guo

Luo

et al. 2021

Virtual and Physical Prototyping

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Multi jet fusion (MJF) is an emerging powder three-dimensional (3D) printing technology with an ultrafast printing speed, in which polyamide 12 (PA12) is the main material currently utilised. Although structurally sophisticated 3D components have been printed by MJF, there are limitations due to the high cost of printing materials and inferior performance of the printed parts. Here, PA12/glass beads (PA12/GBs) composites with improved performance were manufactured via the MJF technique. Incorporating GBs effectively regulated the dimensional accuracy. Furthermore, the composite possessed lower surface roughness and higher surface hardness than neat PA12. Thermal analysis showed that the composite exhibited an enhanced decomposition temperature (390°C) and char yield (38.4 wt.%) compared to neat PA12. Remarkably, the incorporation of GBs did not improve the flame retardance of neat PA12. We identified the improved functionalities of PA12/GBs composites in terms of dimensional accuracy, surface, and thermal properties and analysed possible mechanisms for the observed increased flammability.

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Section: Surface Propertiesmentioning

confidence: 99%

Section: Surface Propertiesmentioning

confidence: 99%