cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Rifki Septawendar
Contact Email
rifkiseptawendar@yahoo.com
Phone
+62227206221
Journal Mail Official
jkgi.bbk@gmail.com
Editorial Address
Jl. Jenderal Ahmad Yani No. 392 Bandung
Location
Kota bandung,
Jawa barat
INDONESIA
Jurnal Keramik dan Gelas Indonesia
Published by Balai Besar Keramik
ISSN : 08545405     EISSN : 26228114     DOI : https://doi.org/10.32537/jkgi
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Materials Science & Nanotechnology
The JKGI contains papers of original research that provide or lead to fundamental principles in the science of ceramics, functional ceramics and ceramic-based composites. These articles include reports of the discovery of new phases, phase relationships, processing approaches and microstructures that relate to ceramic materials and processes. The articles establish the links between processing, structure characterization and properties of ceramics, including modeling approaches that are founded on basic mechanisms. All the published papers must be of enduring value and relevant to the field of ceramics.
Arjuna Subject : Ilmu Material (semua kategori) - Keramik dan Komposit
Articles 72 Documents
 1   2   3   4   5 
Electromagnetic Wave Absorbing Materials on Radar Frequency Range Yana Taryana; Azwar Manaf; Nanang Sudrajat; Yuyu Wahyu
Jurnal Keramik dan Gelas Indonesia Vol 28, No 1 (2019): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32537/jkgi.v28i1.5197

Abstract

Radar absorbing material (RAM) is a material that which can absorb and reduce energy of electromagnetic wave. Recently, RAMs are widely used as an isolator to protect electromagnetic wave interference (EMI) caused by external electromagnetic field and electromagnetic waves generated by radio frequency (RF) components that disturb the performance of a radio system. Whilest, the most strategic function is as anti-radar coating material to supply the needs of military systems such as aircraft, combat ships and other equipments. Generally, RAM must be resistive, magnetic and dielectric. Absorption at the resonant frequency region is indicated by the permitability and permeability values of the material. The Most literature has reported that the basic material which has the potential to absorb electromagnetic waves is ferrite-based magnetic material, namely barium hexaferrite and strontium hexaferrite. Therefore, the current development of research leads to modification and engineering of the material structure so that it is expected to obtain the right parameters with a maximum absorption rate. Generally, RAMs construction design are grouped on the impedance matching and resonant absorber types.
Karakteristik Kromatik Bone Ash Sintetik Berdasarkan Suhu Kalsinasi Herlina Damayanti; Ayu Ratnasari; Kristanto Wahyudi
Jurnal Keramik dan Gelas Indonesia Vol 27, No 2 (2018): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32537/jkgi.v27i2.4409

Abstract

Pada penelitian ini sifat kromatik bone ash sintetik telah dipelajari berdasarkan sistem CIELAB. Bone ash sintetik dikalsinasi dengan variasi suhu 600oC – 1250oC. Masing-masing hasil kalsinasi dijadikan aplikasi glasir ubin pada suhu 1170oC. Panjang gelombang bone ash sintetik kalsinasi 492-574nm dan glasir bone ash 477-542nm, berarti termasuk material putih. Derajat whiteness dan brightness mengalami penurunan dengan nilai terbesar pada bone ash kalsinasi 1250oC, Dwhiteness = -59,90% dan Dbrightness = -61,42%. Berdasarkan nilai L*, a* dan b* ruang warna bone ash sintetik bergeser dari Hijau Kuning menjadi Hijau Biru dan indeks whiteness bergeser menuju hitam. Pergeseran warna terkecil adalah bone ash kalsinasi 1000oC, ΔE  = 13,37 dan terbesar adalah bone ash kalsinasi 1250oC , ΔE  = 37,75. Pergeseran indeks whiteness terkecil adalah bone ash B10, ΔW* = 13,20 dan terbesar adalah bone ash B125  ΔW* = 36,29.  Kata Kunci: CIELAB, bone ash sintetik, kromatik, kalsinasi, whiteness, brightness
Pengaruh Bi2O3 terhadap Struktur Kristal dan Morfologi Barium Titanat yang Disintesis Melalui Dekomposisi BaTi-Sitrat Eneng Maryani; Bambang Sunendar; Ahmad Nuruddin
Jurnal Keramik dan Gelas Indonesia Vol 25, No 1 (2016): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32537/jkgi.v25i1.2345

Abstract

Karakteristik barium titanat dapat berubah dari isolator menjadi semikonduktor tipe n melalui penambahan ion dopan. Pada penelitian ini, Bi2O3 dipilih sebagai dopan untuk barium titanat yang disintesis melalui metode dekomposisi BaTi-Sitrat. Prekursor yang digunakan adalah larutan BaCl2, titanium isopropoksida dan asam sitrat yang direaksikan menjadi BaTi-sitrat, dengan dan tanpa 0,4 mol% Bi2O3 sebagai dopan. Serbuk yang dihasilkan dari kedua proses dikarakterisasi dengan Thermogravimetry-Differential Thermal Analysis (TG-DTA), X-ray Diffraction (XRD) dan Scanning Electron Microscope (SEM). Penambahan dopan tersebut menyebabkan pembentukan fasa kubik BaTiO3 lebih banyak dan terbentuk morfologi BaTiO3 platelet submikron dengan panjang sekitar 0,8 mm dan lebar 0,2 mm.
Fabrication Support Membrane Ceramics Kaolin Alumina For Microfiltration Ria Julyana Manulang; Dede Taufik; Karlina Noordiningsih; Hernawan Hernawan
Jurnal Keramik dan Gelas Indonesia Vol 28, No 2 (2019): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32537/jkgi.v28i2.5774

Abstract

Fabrikasi penyangga membran lorong jamak dengan bahan alumina dan kaolin menggunakan metode ektrusi untuk proses mikrofiltrasi telah dilakukan. Potensi penggunaan membran di berbagai aspek industri mendorong dilakukannya penelitian ini mengingat belum adanya industri membran dalam negeri. Penggunaan bahan utama alumina dan kaolin denga menambahkan  bahan imbuhan seperti CMC, Metosel, corn starch dan aquadest untuk menghasilkan massa keramik plastis. Pengujian keplastisan dilakukan sebagai petunjuk awal dilakukannya proses ektrusi. Faktor yang menetukan keberhasilan penyangga membran telah dapat diidentifikasi dan diselesaikan yaitu faktor geometri pada sepanjang cetakan, diameter cetakan pada bagian pembentukan suport minimal sama. Diameter pori yang dibentuk oleh pembentuk pori bergantung  pada diameter dari poreformer. Starch yang digunakan sebagai pembentuk pori pada percobaan ini menghasilkan diameter pori dengan rata-rata 10 mikron
Characterization of Magnetic and Density Properties on Barium Ferrite with MnO2 Addition Ratih Resti Astari; Handoko Setyo Kuncoro; Didit Nur Rahman; Toni Kristiantoro
Jurnal Keramik dan Gelas Indonesia Vol 26, No 1 (2017): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32537/jkgi.v26i1.3912

Abstract

The addition of MnO2 in synthesis of barium ferrite magnet were prepared by powder metallurgy method with variation formula of MnO2 0%, 0.1%, 0.2%, 0.3%, 0.5% and 1% sintered at 1175 ºC. Material characterization includes X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) and permagraph were employed to investigate the effect of MnO2 addition to magnetic properties and sample density. Hysteresis curve using permagraph showed that the addition of MnO2 have an effect on the increasing of magnetic properties and density. Remanence induction (Br), coercivity (Hc) and density (ρ) reached the maximum value of 1.36 kG, 2.757 kOe and 4.29 g/cm3  respectively  on different formula MnO2. The best value of MnO2 addition could be concluded on the addition MnO2 of 0.3% with Br = 1.36 kG, Hc = 2.683 kOe, and ρ = 4.29 g/cm3. The XRD results showed the formed of barium ferrite phase in the sintered sample at 1175ºC. While the SEM result revealed that the addition of MnO2 affected the density of barium ferrite particles.
Sintesis dan Karakterisasi Bone Ash Sintetik dari Bahan Alam Kristanto Wahyudi; Frank Edwin; Naili Sofyaningsih
Jurnal Keramik dan Gelas Indonesia Vol 25, No 2 (2016): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32537/jkgi.v25i2.2664

Abstract

Sintesa bahan bone ash sintetis yang dihasilan menggunakan metode presipitasi telah berhasil dilakukan. Bahan baku alam yang digunakan untuk sintesa bone ash adalah kapur Padalarang dan kapur Cirebon. Parameter proses sintesis bone ash yang dikontrol adalah pH dari larutan yakni pH 8-9 dan pH 10-11, sedangkan variabel yang dibandingkan adalah suhu perlakuan panas pada rentang suhu 800–1000°C. Perlakuan panas dilakukan untuk mempelajari efek perubahan temperatur terhadap ukuran partikel serta kristalinitas bone ash hasil sintesa. Karakterisasi bone ash sintetis dilakukan dengan EDX, XRD, dan FTIR
Preparation and Characterization of Polyvinyl Alcohol-Nano Hidroxyapatite using Gamma Iradiation Technique for Biomaterial Yessy Warastuti; Dian Pribadi Perkasa; Erizal Erizal; Basril Abbas; Sudirman Sudirman
Jurnal Keramik dan Gelas Indonesia Vol 27, No 1 (2018): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32537/jkgi.v27i1.4064

Abstract

ABSTRACTThe development and use of biomaterials in the biomedical field as bone implants are becoming increasingly important. Synthesis of polyvinyl alcohol (PVA) – bionanohydroxyapatite (HAp) composite hydrogel  has been carried using gamma irradiation technique. The PVA-HAp mixtures containing PVA (10-20%, w/v) and  a single concentration of HAp (20%w) were irradiated with various  irradiation doses  (0-20 kGy). The physico-chemical properties of irradiated composites were observed,includingmechanical properties, water absorption, biodegradation test, and characterized using Fourier-transform Infared Spectroscopy(FTIR), Transmission Electron Microscope (TEM)and Scanning Electron Microscopy (SEM). The results showed that the optimum  conditions wasPVA-HAp hydrogel composites (20%-20%, irradiation dose 20 kGy) with tensile strength 0.82 Mpa, elongation of 281.67%, water  absorption of 103.18%, and  biodegradation of 22.46%. The results of FTIR measurements of  PVA-HAp composites showed the occurrence of crosslinking  between PVA-HAp in the irradiation process. The SEM and TEM measurements showed that  HAp powder  was nano particle ( <60 mesh) and in the formed of fibers and with heterogen porousThe irradiated  PVA-HA composite  was expected to be  as candidate for  biomaterials application.
Biocomposite of Hydroxyapatite from Chicken Egg Shells and Biochar from Rice Husk As an Adsorbent for Copper Ion and Methylene Blue hendri setiawan; Umi F. Anindi; Dedek Y Pulungan; Nur Akbar; Atiek R. Noviyanti; Solihudin Solihudin
Jurnal Keramik dan Gelas Indonesia Vol 29, No 1 (2020): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32537/jkgi.v29i1.5912

Abstract

The growth of industrial activity and increasing use of water have effected to the releasing of various pollutants into the waters, as methylene blue and copper ions. Excess levels of methylene blue and copper ions in the waters can cause ecosystem damage. This study aims to obtain biocomposites of hydroxyapatite from chicken egg shells and biochar from rice husk as well as their adsorption ability to inorganic pollutants (Cu (II)) and organic pollutant (methylene blue). Hydroxyapatite (HA) was synthesized by calcining chicken eggshells into CaO powder which is then reacted with (NH4)2HPO4. Furthermore HA was mixed with biochar from rice husk to form biocomposites. The ability of the biocomposite adsorption test was carried out by varying the time and initial concentration of the metal solution and methylene blue. Based on the results of the study, HA-biochar composites showed the best contact adsorbing time for methylene blue and copper ions 50 and 30 minutes respectively. Testing of biocomposite adsorption ability to the initial concentration of methylene blue as much as 12.79 ppm showed that the biocomposite is able to adsorb methylene blue to a residual concentration of 1.15 ppm or the maximum percentage of methylene blue that can be adsorbed by 91%. The ability of HA-biochar composites to adsorb methylene blue is better than its constituent materials (HA and biochar). HA-biochar composites was also able to adsorb Cu ions with an average adsorption percentage of 79.45% from the initial concentration.
Sintesis Precipitated Calcium Carbonated Dengan Asam Stearat Sebagai Pengubah Permukaan Citra Fitriani K; Dede Taufik; Kristanto Wahyudi; Hernawan Hernawan
Jurnal Keramik dan Gelas Indonesia Vol 26, No 2 (2017): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32537/jkgi.v26i2.4123

Abstract

Jumlah permintaan material PCC yang mencapai 108,5 jutan ton pada tahun 2016 dan akan terus meningkat pada tahun-tahun berikutnya. Hampir semua industri membutuhkan material PCC baik sebagai filler maupun material utama seperti kertas, tekstil, karet, cat, ban, bahan adesif, farmasi, kosmetik, sealant, keramik, pasta gigi, makanan, plastik, deterjen, perekam magnetik, sistem transport obat-obatan dan sebagainya. oleh karena itu penelitian ini dilakukan untuk memanfaatkan sumber daya kapur alam Indonesia. Penelitian sintesis PCC ini menggunakan bahan baku dari Padalarang. Proses pembuatan PCC dilakukan dengan metoda karbonasi dan asam stearate sebagai pengubah. Hasil penelitian menunjukkan persen CaCO3 meningkat seiring dengan penambahan asam stearat dengan persen teritinggi 99,387 %. dalam bubur menentukan ukuran butir kapur yang dapat dicapai. Selain itu derajat putih (whiteness) dan derajat kecerahan (brightness) meningkat secara signifikan seiring dengan penambahan asam stearat, nilai yang tertinggi adalah whiteness 84,61 dan brightness 90,93 dengan konsentrasi asam stearat 2,5%.
Sintesis dan Karakterisasi Lempung Terinterkalasi dengan Menggunakan Cetyl Pridinium Chloride Hernawan Hernawan; Nurhidayati Nurhidayati
Jurnal Keramik dan Gelas Indonesia Vol 25, No 2 (2016): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32537/jkgi.v25i2.2669

Abstract

CPC merupakan garam organik yang terdiri kation kuartener dari amonium dan anion khlor. CPC dapat digunakan untuk memperlebar jarak basal/interkalasi dari montmorillonit. Fenomena pelebaran ini akan dibahas dalam artikel ini.

Page 3 of 8 | Total Record : 72

 1   2   3   4   5 

Filter by Year

2015 2021


Reset
Filter By Issues
All Issue Vol 30, No 2 (2021): Jurnal Keramik dan Gelas Indonesia Vol 30, No 1 (2021): Jurnal Keramik dan Gelas Indonesia Vol 29, No 2 (2020): Jurnal Keramik dan Gelas Indonesia Vol 29, No 1 (2020): Jurnal Keramik dan Gelas Indonesia Vol 28, No 2 (2019): Jurnal Keramik dan Gelas Indonesia Vol 28, No 1 (2019): Jurnal Keramik dan Gelas Indonesia Vol 27, No 2 (2018): Jurnal Keramik dan Gelas Indonesia Vol 27, No 1 (2018): Jurnal Keramik dan Gelas Indonesia Vol 26, No 2 (2017): Jurnal Keramik dan Gelas Indonesia Vol 26, No 1 (2017): Jurnal Keramik dan Gelas Indonesia Vol 25, No 2 (2016): Jurnal Keramik dan Gelas Indonesia Vol 25, No 1 (2016): Jurnal Keramik dan Gelas Indonesia Vol 24, No 2 (2015): Jurnal Keramik dan Gelas Indonesia More Issue