Mechanical measurements of pure and kaolin reinforced hydroxyapatite-derived scaffolds: A comparative study

Obada, David O.; Dauda, E.T.; Abifarin, Johnson Kehinde; Bansod, Naresh D.; Dodoo‐Arhin, David

doi:10.1016/j.matpr.2020.06.412

Cited by 22 publications

(20 citation statements)

References 20 publications

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“…Also, HA is biocompatible i.e. it is non-toxic, non-inflammatory and enhanced immunologic responses [2][3][4][5]. In recent studies, HA has been derived from natural sources [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Taguchi grey relational analysis on the mechanical properties of natural hydroxyapatite: effect of sintering parameters

Abifarin

2021

Int J Adv Manuf Technol

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Our previous study have reported synthesis and mechanical properties of natural hydroxyapatite (HA), but optimization of the measured hardness and compressive strength has not been examined. This paper presents optimization of mechanical characteristics (hardness and compressive strength), using Taguchi-grey relational analysis design. In the design, three factors with mixed levels (2 and 3) is employed with the consideration of sintering parameters (0 and 500 Pa compaction pressure, and 900, 1000 and 1100 o C sintering temperature), reported in the previous study. The orthogonal array L18 having 18 rows corresponding to the number of tests and the required columns was selected. Results obtained shows that HA with good hardness and compressive strength is feasible with less or no compaction pressure sintering parameter. An optimum grey relational grade (GRG) of the synthesized HA is 0.7171 and has experimental value within 95% confidence interval.The optimal sintering parameters are gotten to be 500Pa compaction pressure and 1100 o C sintering temperature. Result shows that sintering temperature having 99.90 percentage of contribution is the most significant factor, while compaction pressure and error are insignificant on the overall hardness and compressive strength of the synthesized HA.

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“…Also, HA is biocompatible i.e. it is non-toxic, non-inflammatory and enhanced immunologic responses [2][3][4][5]. In recent studies, HA has been derived from natural sources [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Taguchi grey relational analysis on the mechanical properties of natural hydroxyapatite: effect of sintering parameters

Abifarin

2021

Int J Adv Manuf Technol

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“…4. Note that the cost of electricity tariff (62.33 Naira per kwh) in Nigeria today discourages the pretreatment process used by Abifarin et al [21] and Obada et al [22,120] as this will increase the cost of producing natural hydroxyapatite in large quantity. Therefore, burning in open with charcoal will bring down the cost of producing hydroxyapatite.…”

Section: Discussionmentioning

confidence: 99%

“…Obada et al [120] executed a laboratory study on the mechanical properties of kaolin reinforced hydroxyapatite (K-HAp) made from animal osteo under varied sintering conditions. HAp particles were produced by a simple heat treatment way and reinforced with 15 wt% selected kaolin (HAp/15 wt% BK) using sol-gel means to mix them.…”

Section: Mechanical Properties Of Hydroxyapatitementioning

confidence: 99%

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Synthesis techniques, characterization and mechanical properties of natural derived hydroxyapatite scaffolds for bone implants: a review

et al. 2021

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Hydroxyapatite (HAp) with good mechanical properties is a promising material meant for a number of useful bids in dentistry and orthopedic for biomedical engineering applications for drug delivery, bone defect fillers, bone cements, etc. In this paper, a comprehensive review has been done, by reviewing different literatures related to synthesis techniques, mechanical properties and property testing, method of calcination and characterization of hydroxyapatite which are product of catfish and bovine bones. The discussion is in relations of the obligatory features vital to attain the best properties for the envisioned bid of bone graft. The process approaches that are capable of fabricating the essential microstructure and the ways to advance the mechanical properties of natural mined HAp are reviewed. The standard values for tensile strength were found to be within the range of 40–300 MPa, compressive strength was 400–900 MPa, while Elastic modulus was 80–120 GPa and fracture toughness was 0.6–1 MPa m1/2 (Ramesh et al. in Ceram Int 44(9):10525–10530, 2018; Landi et al. in J Eur Ceram Soc 20(14–15):2377–2387, 2000; Munar et al. in Dent Mater J 25(1):51–58, 2006). Also, the porosity range was 70–85% (Yang et al. in Am Ceram Soc Bull 89(2):24–32, 2010), density is 3.16 g/cm3 and relative density is 95–99.5% (Ramesh et al. 2018; Landi et al. 2000; Munar et al. 2006). The literature revealed that CaP ratio varies in relation to the source and sintering temperature. For example, for bovine bone, a CaP ratio of 1.7 (Mezahi et al. in J Therm Anal Calorim 95(1):21–29, 2009) and 1.65 (Barakat et al. in J Mater Process Technol 209(7):3408–3415, 2009) was obtained at 1100 °C and 750 °C respectively. Basic understanding on the effect of adding foreign material as a strengthening agent to the mechanical properties of HAp is ground factor for the development of new biomaterial (Natural hydroxyapatite, NHAp). Therefore, it is inferred that upon careful combination of main parameters such as compaction pressures, sintering temperatures, and sintering dwell times for production natural HAp (NHAp), mechanical properties can be enhanced. Graphic abstract

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“…Each sample was subjected to 3 hardness readings at different positions on the sample bases and the average taken. ASTM D2240 (Shore D) was used [18,26,27].…”

Section: Hardness Testmentioning

confidence: 99%

Experimentally Predicted Optimum Processing Parameters Assisted by Numerical Analysis on the Multi-physicomechanical Characteristics of Coir Fiber Reinforced Recycled High Density Polyethylene Composites

Awodi

et al. 2021

Preprint

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This paper presents the analysis of processing parameters in the fabrication of coir fiber recycled high density polyethylene composite through experimental data and Taguchi grey relational analysis. Three processing parameters; fiber conditions, fiber length, and fiber loading with mixed level design, having orthogonal array L32 (2**1 4**2) were employed in the preparation of polymer composite. Numerical analysis assisted by Taguchi design was conducted on the experimental multi-physicomechanical characteristics of the polymer composite for optimum processing parameters. The optimum grey relational grade was gotten to be 0.8286 and was experimentally validated with 95% confidence interval. The optimum processing parameters were discovered to be a treated fiber having 8 mm length at 30% loading. Although, other processing parameters are significant, but fiber loading is the most significant parameter. Correspondingly, the contribution of residual error on the overall multi-physicomechanical characteristics is insignificant having 2.43% of contribution.

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Mechanical measurements of pure and kaolin reinforced hydroxyapatite-derived scaffolds: A comparative study

Cited by 22 publications

References 20 publications

Taguchi grey relational analysis on the mechanical properties of natural hydroxyapatite: effect of sintering parameters

Taguchi grey relational analysis on the mechanical properties of natural hydroxyapatite: effect of sintering parameters

Synthesis techniques, characterization and mechanical properties of natural derived hydroxyapatite scaffolds for bone implants: a review

Experimentally Predicted Optimum Processing Parameters Assisted by Numerical Analysis on the Multi-physicomechanical Characteristics of Coir Fiber Reinforced Recycled High Density Polyethylene Composites

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