Glass-filled polyurethane materials produced by fiber composite spraying

Gumerov, I. F.; Gumerov, Azat Florovich; Lakhno, A. V.; Shafigullin, L. N.; Yurasov, S. Yu.; Shafigullina, G. R.

doi:10.3103/s1068798x17100100

Cited by 3 publications

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“…Fiber spraying is used in large scale especially for glass fiber reinforced plastics. Due to the continued importance of this manufacturing process, research continues on sprayed glass, 29–54 carbon, 52–65 or natural 66–74 short fiber‐reinforced plastics. In this process, the fibers are cut in a cutting unit and sprayed mostly randomly or by using special fiber feed units, aligned 29–34,54–58,74 on a mold.…”

Section: Introductionmentioning

confidence: 99%

“…[75][76][77] Due to the usual manual production routes, there are sometimes strong variations in quality, which mostly limit the use of such materials to simple structures that are not exposed to heavy loads, such as molds, paneling, and tubs. 27 In order to enhance reproducibility and component quality, the automation of the fiber spraying process by using robots [29][30][31][32][33][34][35][36][37][38][39][40]43,[55][56][57][58][59][60][61][62][63]66,67,70,[74][75][76] has been the focus of research in the past few years. In the field of fiberreinforced ceramics, this process is new and not yet established.…”

Section: Introductionmentioning

confidence: 99%

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Short fiber spraying process of all‐oxide ceramic matrix composites: A parameter study

Winkelbauer

Puchas

Krenkel

et al. 2022

Int J Applied Ceramic Tech

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Fiber spraying processes have been established for polymer matrix composites for decades. In this study, we transferred an automated fiber spraying process to short fiber bundle‐reinforced Nextel 610/ Al2O3‐ZrO2 oxide fiber composites (SF‐OFC). The effect of the processing factors travel height, spray angle, and movement speed on the specimen strength was analyzed in a full factorial experimental design. As a result, the significance of the travel height as well as the interaction between travel height and movement speed was demonstrated. Furthermore, the influence of the fiber length (14, 28, 56, and 112 mm) on the bending stress and strain was investigated. Independent of the used fiber length, the SF‐OFC exhibited an excellent quasi‐ductile fracture behavior with bending strains in the range of .6% and in‐plane isotropic material properties. The average bending strength increased from 133 ± 27 MPa with 14 mm fiber reinforcements to 163 ± 29 MPa with 112 mm fibers. The achieved bending strengths clearly exceeded the off‐axis properties of currently used fabric‐reinforced OFC. These properties, combined with the excellent drapability and cost effectiveness, make the novel material highly promising for industrial applications such as flame tubes, burner nozzles, kiln furnitures, or foundry components.

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