Search results

Material extrusion (ME) is a low-cost additive manufacturing (AM) technique that is capable of producing metallic components using desktop 3D printers through a three-step printing, debinding and sintering process to obtain fully dense metallic parts. However, research on ME AM, specifically fused filament fabrication (FFF) of 316L SS, has mainly focused on improving densification and mechanical properties during the post-printing stage; sintering parameters. Therefore, this study aims to investigate the effect of varying processing parameters during the initial printing stage, specifically nozzle temperatures, T_n (190°C–300°C) on the relative density, porosity, microstructures and microhardness of FFF 3D printed 316L SS.

Cube samples (25 x 25 x 25 mm) are printed via a low-cost Artillery Sidewinder X1 3D printer using a 316L SS filament comprising of metal-polymer binder mix by varying nozzle temperatures from 190 to 300°C. All samples are subjected to thermal debinding and sintering processes. The relative density of the sintered parts is determined based on the Archimedes Principle. Microscopy and analytical methods are conducted to evaluate the microstructures and phase compositions. Vickers microhardness (HV) measurements are used to assess the mechanical property. Finally, the correlation between relative density, microstructures and hardness is also reported.

The results from this study suggest a suitable temperature range of 195°C–205°C for the successful printing of 316L SS green parts with high dimensional accuracy. On the other hand, T_n = 200°C yields the highest relative density (97.6%) and highest hardness (292HV) in the sintered part, owing to the lowest porosity content (<3%) and the combination of the finest average grain size (∼47 µm) and the presence of Cr23C6 precipitates. However, increasing T_n = 205°C results in increased porosity percentage and grain coarsening, thereby reducing the HV values. Overall, these outcomes suggest that the microstructures and properties of sintered 316L SS parts fabricated by FFF AM could be significantly influenced even by adjusting the processing parameters during the initial printing stage only.

This paper addresses the gap by investigating the impact of initial FFF 3D printing parameters, particularly nozzle temperature, on the microstructures and physical characteristics of sintered FFF 316L SS parts. This study provides an understanding of the correlation between nozzle temperature and various factors such as dimensional integrity, densification level, microstructure and hardness of the fabricated parts.

The main value in a culture of tolerance is wasatiyyah. The fragility of relationships and misunderstanding between Muslim and non-Muslim communities occurs when attention to values of tolerance which need more attention on moderation was not practiced especially in the life of a new Muslim convert community. Thus, the practice of moderation is one mechanism proposed by the government to ensure a harmonious continuation of life in a religious community can be achieved. For that, a qualitative study design was used to describe the current status of a phenomenon that occurs among new Muslim converts. The purposive sampling method is used to determine the applications of wasatiyyah in new Muslims’ life tolerance at Kota Kinabalu (East Malaysia) and Kuala Terengganu (West Malaysia). Although the study was conducted at two different locations, there is a relationship between religious phenomena that occur in the new Muslims community in Malaysia. The purpose of this study is to see the practical concept of moderation in the life of new Muslims and their relation with Muslims and non-Muslims. The results showed that the value of moderation was applied in the aspect of tolerance. The application of Wasatiyyah in practice of tolerance had helped non-Muslims family members to change their attitudes and perception towards Islam. This study suggests the values of wasatiyyah in the life of religious tolerance, need to be nourished especially in multiethnic society when sharing a living places, education and employment for better social development as well as a well-being pluralistic society.

The study was conducted through descriptive data qualitative methods. Purposive sampling was used which refers to a group that has the characteristics of samples required by researchers (Mohd Najib Abdul Ghafar 2003). This study applies the method of in-depth interview with the selected new Muslims around Kota Kinabalu (representing East Malaysia) and around Kuala Terengganu (representing Peninsular Malaysia/West Malaysia). Thus, data accumulation involves new Muslims (new Converts) from various ethnics (Sabahan and Sarawakian) which comprise Kadazandusun, Murut, Rungus, Sino and Iban. Secondly, those are from the Peninsular Malaysia which includes Chinese and Indian. Whereas in Kuala Terengganu, data accumulation involves new Muslims from various ethnics (Chinese, Indian, Sarawakian and others). The result of the interview is shown through descriptive narratives which display the practice of tolerance in the form of supportive interaction from the non-Muslim families towards the new Muslims in Islamic lifestyle.

The concept of wasatiyyah has nurturing tolerance among Muslim, newly Muslim and non-Muslim as well as fostering harmony among the diverse ethnics in Malaysia. Based on the discussion, it was observed that the concept of wasatiyyah had a great influence on the relationship among Muslim, newly Muslim and non-Muslim, as it had a strong link with the value of akhlaq that have been embedded in the Muslim community. The wasatiyyah is the main element that shapes the relationship, and it is the results of interaction with social norms, for it has bred certain social values that include tolerance, compromise, modesty, respect and cooperation as transpired when they (Muslim and newly Muslim) interact among themselves or with other communities. Furthermore, the main goal for the concept is to maintain peace and built well-being in the society as well as bracing racial ties in Malaysia, especially among Muslim, newly Muslim and non-Muslim.

Tolerance is a culture that founded the co-existence of pluralistic society in Malaysia. The culture of tolerance can only be built if ethnic tolerance and religious tolerance is accepted as a common practice – Muslims and non-Muslims alike. The description of wasatiyyah in the practice of religious tolerance among the families of new Muslims is the platform towards the acculturation of tolerance in the societal life from different faith and ethnics. It can be said that the higher the tolerance of ethnic, the higher is the religious tolerance, which is manifested through the application of wasatiyyah between people from different religions. This situation is highlighted in the relations of Muslim, newly Muslim and non-Muslim in Sabah and Terengganu where the culture of tolerance is apparent in the life together. Extensive interaction through encounters, acquaintance and co-existence that shape the friendship, brotherhood and kinship is the best formula in nurturing the culture of tolerance in the pluralistic society of Malaysia. Perhaps, the concept of wasatiyyah may be implemented in the whole aspect of life in the context of Malaysia. It is because the term wasatiyyah has the main sources of Islamic epistemology as well as sustaining the well-being pluralistic society without destroying the differences.

This paper aims to analyze the role of waqf in the socio-economic development of the organization of the Islamic Cooperation (OIC) countries. Various projects currently use waqf as an instrument for socio-economic development, as reported in the scholarly literature. This study will investigate this literature to explore trends in waqf studies and the role of this Islamic form of endowment in the socio-economic development of OIC countries.

This systematic literature review focuses on peer-reviewed journals and data obtained from the Mendeley database using specific criteria to analyze the socio-economic developmental role of waqf in OIC countries from 2011‐2020.

The socio-economic developmental role of waqf in OIC countries has been widely studied. In total, 68 academic articles were found that are relevant to themes of poverty alleviation, social welfare, entrepreneurship, education, health services and religious facilities. They reveal that the role of waqf in social welfare was the most discussed topic in the research. In addition, the majority of studies used an interview method to study waqf institutions in nine OIC countries. Furthermore, the number of publications on the theme has increased significantly every year, although the largest proportion occurred in unindexed journals.

This study provides an overview of research trends in the socio-economic developmental role of waqf. Its results can provide practical input for waqf institutions as they encourage its practice in OIC countries, and for policymakers in formulating their management strategies to promote the role of waqf in the social and economic aspects of society.

This paper reviews the current development of the socio-economic role of waqf in OIC countries. It will help researchers improve their understanding of this role. It will also provide waqf managers in OIC countries with adequate information on waqf projects which they can implement to achieve socio-economic development in their countries.