Akhlak As'adiyah

Buku yang berada di hadapan pembaca yang budiman dibuat dalam rangka memenuhi kebutuhan bahan bacaan dan referensi bagi para pecinta ilmu-ilmu agama khususnya santri, mahasantri, mahasiswa, guru, alumni, dan keluarga besar As’adiyah tanpa terkecuali, dan seluruh umat Islam umumnya. Buku ini lahir karena terinspirasi oleh tiga hal utama, pertama untuk memberi pemahaman kepada para murid, siswa, santri, mahasantri, mahasiswa, guru, alumni, dan keluarga besar As’adiyah tentang sejarah As’adiyah, praktek ibadah (fikih) As’adiyah, akidah As’adiyah, dan akhlak As’adiyah yang bagi hemat kami dipastikan memiliki dasar kuat dari Al- Qur’an, hadis, dan ijmak ulama. Kedua, ditemukannya sejumlah alumni As’adiyah yang telah berkiprah di luar meninggalkan kebiasaan yang selama ini mereka amalkan ketika mereka di pesantren, bahkan menganggap bahwa amalan yang diamalkan di pesantren keliru. Penyebabnya karena mereka tidak memiliki pegangan. Ketiga, sebagai bentuk kecintaan dan terimakasih kami kepada As’adiyah yang telah memberikan pengetahuan, pendidikan, dan pelajaran berharga bagi kami

Powder injection molding of SS 316L/TiC composite

The powder injection molding (PIM) of a new metal matrix composite (MMC) comprising of water-atomized 316L stainless steel powder and 3 wt. % TiC particulate reinforcement was carried out in this research. The main objective of this work was to produce defect-free 316L stainless steel MMC parts and to compare the mechanical properties with unreinforced 316L stainless steel parts. Prior to the sintering step, suitable process conditions for mixing, injection molding and debinding were established. In the mixing study, the experimental materials were characterized, suitable powder loading and mixing parameters were established. The results show that the feedstock mixed in the sigma blade mixer followed by a two-pass extrusion gives the best feedstock homogeneity. The feedstock viscosity was characterized within a permissible range of molding temperatures and was determined to be less than 1000 Pa.s which is suitable for injection molding.Master of Engineering (MPE

Orientation of Carbon Fibers in Copper matrix Produced by Powder Injection Molding

Fiber orientation is a big challenge in short fiber reinforced composites. Powder injection molding (PIM) process has some intrinsic fiber alignment associated with it. During PIM process fibers in skin region of moldings are aligned as these regions experience higher shear flow caused by the mold walls. Fibers in the core region remain randomly aligned as these regions are far from mold walls and experience lesser shear flow. In this study short carbon fiber (CF) reinforced copper matrix composite was developed by PIM process. Two copper composite feedstock formulations were prepared having 5 vol% and 10 vol% CFs and a wax based binder system. Fiber orientation was controlled during injection molding by using a modified mold that has a diverging sprue. The sprue creates converging flow when feedstock enters into the mold cavity. Fiber orientation was analysed after molding using FESEM. The orientation of fibers can be controlled by controlling flow of feedstock into the mold