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"Pengecoran merupakan salah satu metode untuk memproses paduan aluminium sehingga menghasilkan produk. Parameter penting yang dapat menentukan kualitas produk hasil pengecoran adalah kemurnian dan sifat mekanis. Dalam proses pengecoran, kelarutan gas hidrogen dan reaktivitas aluminium terhadap atmosfer akan mengalami peningkatan seiring dengan kenaikan temperatur dan dapat mengakibatkan cacat porositas serta inklusi yang akan berpengaruh pada kebersihan produk hasil cor dan menurunkan sifat mekanisnya. Untuk menghindari cacat pengecoran tersebut dapat dilakukan perlakuan dengan penambahan fluks. Pada penelitian dan literature review ini dilakukan studi pengaruh temperatur peleburan aluminium dengan perlakuan penambahan cleaning flux berbasis NaCl-KCl-Na2SiF6. Cleaning flux dibuat dengan variasi komposisi berdasarkan Na2SiF6 sebesar 5wt%, 10wt%, 15wt%, 20wt%. Material yang digunakan dalam literature review adalah paduan Al-Si-Cu dengan variasi temperatur peleburan 700oC, 740oC, 780oC, 790oC. Karakterisasi material dilakukan dengan menggunakan DSC, OM, SEM, perhitungan inklusi, pengukuran kepadatan dan pengujian tarik. Hasil penelitian dan literature review menunjukkan bahwa peningkatan komposisi Na2SiF6 dalam fluks akan menurunkan temperatur dekomposisi fluks dan meningkatkan efisiensi pengangkatan inklusi dalam aluminium cair. Kemurnian dan sifat mekanis tertinggi diperoleh pada temperatur peleburan 740oC.

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Casting is one of methods for processing aluminum alloys to produce aluminum products. Important parameters that can determine the quality of casting products are purity and mechanical properties. In the casting process, the solubility of hydrogen gas and aluminum reactivity to the atmosphere will increase along with rising temperatures and can result in porosity defects and inclusions that will affect the cleanliness of the cast product and decrease its mechanical properties. To avoid casting defects can be treated with the addition of flux. In this research and literature review, a study on the effect of aluminum melting temperature with the addition of NaCl-KCl- Na2SiF6-based cleaning flux was carried out. Cleaning fluxes were made with composition variation based on Na2SiF6 of 5wt%, 10wt%, 15wt%, 20wt%. The material used in the literature review were Al-Si-Cu alloys with melting temperature variation of 700oC, 740oC, 780oC, 790oC. Material characterization was determined using DSC, OM, SEM, inclusion measurement, density measurement and tension testing. The results of the research and literature review show that increasing the composition of Na2SiF6 in flux decreases the flux decomposition temperature and increases the efficiency of removing inclusions in liquid aluminum. The highest purity and mechanical properties are obtained at melting temperature of 740oC."

"Sustainable development goals (SDGs) di Indonesia menghasilkan pertumbuhan proyek-proyek berkelanjutan seperti transisi energi terbarukan yang mendorong industri TIC memainkan peran penting dalam memastikan keselamatan, kualitas, dan pemenuhan. Penelitian ini menyelidiki penerimaan dan kesiapan praktik green human resource management (GHRM) antara praktisi dan non-praktisi di perusahaan TIC milik negara di Indonesia. Penerimaan dinilai melalui praktik GHRM (recruitment, training, performance, rewards, and involvement) sedangkan kesiapan melibatkan appropriateness, management support, change efficacy, dan personal benefit. Pengolahan data dibagi menjadi dua, tahap I (penerimaan) dan tahap II (kesiapan). Statistik deskriptif tahap I menunjukkan tingkat penerimaan yang tinggi, sehingga dilanjutkan ke tahap II yang juga menunjukkan tingkat kesiapan tinggi. Pengujian komparatif dengan uji Mann-Whitney U dilakukan untuk membandingkan grup praktisi dan non-praktisi. Hasil penelitian tahap I ditemukan terdapat perbedaan signifikan penerimaan antara kedua grup, sedangkan pada tahap II tidak ada perbedaan signifikan kesiapan antara kedua grup. Dimensi GHRM yang diuji mendapatkan penerimaan dan kesiapan tinggi, sehingga bisa menjadi referensi bagi praktisi dalam mengembangkan kerangka GHRM di perusahaan TIC atau organisasi sejenis.

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Sustainable development goals (SDGs) in Indonesia result in the growth of sustainable projects such as the renewable energy transition, which encourages the TIC industry to play an important role in ensuring safety, quality, and compliance. This research investigates the acceptance and readiness of green human resource management (GHRM) practices between practitioners and non-practitioners in a state-owned TIC company in Indonesia. Acceptance was assessed through GHRM practices (recruitment, training, performance, rewards, and involvement), while readiness involved appropriateness, management support, change efficacy, and personal benefits. The data is processed into Phase I (acceptance) and II (readiness). The descriptive statistics of Phase I showed a high level of acceptance. Thus, it continued to Phase II, which also showed a high level of readiness. Comparative testing with the Mann-Whitney U test was carried out to compare the practitioner and non-practitioner groups. The results of Phase I found a significant difference in acceptance between the two groups, while in Phase II, there was no significant difference in readiness between the two groups. The GHRM dimensions tested obtained high acceptance and readiness; therefore, it can be a reference for practitioners developing a GHRM framework in TIC companies or similar organizations."