Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Pillar of Physics: Jurnal Berkala Ilmiah Fisika

fis
Website

Published by Universitas Negeri Padang

ISSN : 23379030 EISSN : 26852608 DOI : http://dx.doi.org/10.24036/10741171074

Core Subject : Science,

Earth & Planetary Sciences Materials Science & Nanotechnology Physics

This journal publishes original articles on the latest issues and trends occurring internationally in: 1 Geophysics, 2 Electronics and Instrumentation, 3 Material Physics, (4) Computational Physics. Other topics are related to physics are most welcome.

Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)

Articles 12 Documents

1 2

Search results for , issue "Vol 12, No 1 (2019)" : 12 Documents clear

Pengaruh variasi komposisi pada sifat magnet dari nanokomposit NiFe2O4/PANi yang disintesis dengan metode sol-gel spin coating (Composition variations effect on the magnetic properties of NiFe2O4 / PANi nanocomposites synthesized by the sol-gel spin coating) - Helmita; - Ramli; - Hidayati
PILLAR OF PHYSICS Vol 12, No 1 (2019)
Publisher : Department of Physics – Universitas Negeri Padang UNP

NiFe2O4-polyaniline nanocomposites (NiFe2O4-PANi) with different contens of NiFe2O4 and PANi (30%,40%,50%,60% and 70% were prepared via sol-gel spincoating methode. The prepared sample were characterized using some teqniques such as X-Ray difraction and magnetic properties of the nanocomposites were measured using vibrating sample magnetometer. Nanocomposites were prepared using sol-gel spin coating technique (Fe(NO3)3.9H2O and Ni(NO3)2.6H2O precursors. Composite gels were coated on a glass substrate followed by drying and annealing to be used as thin films. Thin layers of nanocomposites were characterized using X-Ray Diffraction and Vibrating Sample Magnetometer, crystal size, coercivity, remanent magnetization, saturation magnetization at 30% composition were 44.36nm, 512Oe, 1.02mm, 1.02mm, at 40% variation respectively was 21.20 nm; 579,91Oe; 1,07 mm; 3,15mm; on 50% variation were 42,25nm; 562,42Oe; 1,04mm; 3,50mm; on 60% variation 43,96nm respectively; 639 .0Oe; 1.04mm; 3.01mm, at 60% variation respectively 39.18nm; 447.21Oe; 1.33mm; 4.38. Variations of NiFe2O4 / PaNi nanocomposite composition affect crystal size and magnetic properties of nanocomposite samples NiFe2O4 / PaNi

Analisis sifat listrik nanokomposit NiFe2O4/PANi yang disintesis dengan metode sol gel (Analysis of the electrical properties of NiFe2O4 / PANi nanocomposites synthesized by sol gel method) Sri Rahma Yani; Djusmaini Djamas
PILLAR OF PHYSICS Vol 12, No 1 (2019)
Publisher : Department of Physics – Universitas Negeri Padang UNP

NiFe2O4/PANi nanocomposite was synthesized using the sol gel method with satisfying 2.5%, 5%, 30%, 50%, and 70% NiFe2O4 to PANi. Characterization of particle size, sample thickness, conductivity, and capacitance using X-ray diffraction (XRD), Scanning Microscope Electrons (SEM), and LCR Meter. Information sizes in 2.5%, 5%, 30%, 50%, and 70% are 37.16 nm, 54.16 nm, 31.2 nm, 42.23 nm, and 39.16 nm respectively. The electrical properties of NiFe2O4 / PANi Nanocomposites are used by using LCR meters, namely resistance and capacitance. The values of electrical conductivity generated from various meetings were 2.5%, 5%, 30%, 50%, and 70%, respectively 0.13 S / m, 0.08 S / m, 0.16 S / m, 0.57 S / m, and 0.25 S / m. From the measurement results show that the values of electrical conductivity in NiFe2O4 / PANi 2.5% high compared to NiFe2O4 / PANi 5% and again increase along with the increasing composition of NiFe2O4. However, in the condition of NiFe2O4 / PANi nanocomposite 70% electrical conductivity decreased. For large amounts of NiFe2O4 to PANi, the electrical conductivity increases. NiFe2O4 / PANi capacitance through a difference of 2.5%, 5%, 30%, 50%, and 70% resulted from successive measurements of 193.32 nF, 83.77 nF, 0.001 nF, 0.55 nF, 0 , 44 nF. The capacitance of NiFe2O4 / PANi shows that the greater the amount of NiFe2O4 to PANi the capacitance decreases.

Pembuatan set eksperimen gerak harmonis sederhana pada bandul berbasis Sensor Ping dan Sensor Photogate dengan tampilan PC (Fabrication of a simple set of harmonic motion experiments on pendulum based on Ping Sensor and Photogate Sensor with PC display) Lily Handayani; - Yulkifli; - Yohandri
PILLAR OF PHYSICS Vol 12, No 1 (2019)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Physics experiments have a very important role. The most important thing that must be considered in conducting physics experiments is the set of experiments. One of the physics experiments that has been developed is the experimental set of simple harmonic motion in pendulum but not yet completely complete. The research that will be conducted is a type of R & D research with a 4D model. Where the 4D development model has 4 stages, define, design, develop and dissemination. The measurement technique used is direct and indirect measurements. Direct measurement is done to determine the angle used. Indirect measurements are made to determine the number of oscillations of pendulum (n), period (T), and length of rope (l). Data obtained through measurements in the form of data accuracy and accuracy and analyzed in two ways, namely statistically and graphically. So that the average accuracy is 98.60% and the average accuracy is 0.997 with a validity level of 86.66%.

Pembuatan set eksperimen gerak vertikal bawah berbasis Sensor Ping dan Sensor Photogate dengan tampilan PC (Fabrication of a set of bottom vertical motion experiments based on Ping Sensor and Photogate Sensor with PC display) Maria Idayu; - Yulkifli; Zulhendri Kamus
PILLAR OF PHYSICS Vol 12, No 1 (2019)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Perkembangan ilmu pengetahuan dan teknologi tidak terlepas dari peran berbagai disiplin ilmu yang ada, salah satunya Fisika. Salah satu fenomena fisika adalah gerak jatuh bebas. Penelitian ini menjelaskan spesfikasi desain, validasi dan spesifikasi performansi set eksperimen gerak jatuh bebas. Hasil dari sistem performansi set eksperimen gerak jatuh bebas ini terdiri sistem mekanik dan elektronik. Sistem mekanik terdiri dari sensor photogate,sensor ping, sensor getaran, statif, lengan statif, dan dasar statif. Sistem elektronik set eksperimen gerak jatuh bebas terdiri dari catudaya, rangkaian LCD, rangkaian reset, rangkaian pengontrolan magnet, rangkaian sensor getar, rangkaian sensor ping dan rangkaian sensor photogate. Hasil darispesifikasi dari set eksperimen gerak jatuh bebas terdiri dari ketelitian, ketepatan dan validasi alat. Ketepatan pengukuran set eksperimen ini adalah 97,84%, ketelitian dari set eksperimen ini adalah 99,63% dengan standar deviasi sebesar 0,00022 dan validasi set eksperimen ini berada pada kriteria sangat valid dengan nilai rata-rata validasi tenaga ahli adalah 86,66%.

Pembuatan alat ukur sudut datang dan intensitas cahaya matahari real time menggunakan sensor accelerometer dan LDR (Measuring instrument fabrication of incidence angle and real-time sunlight intensity using accelerometer and LDR sensors measuring instrument) Ocha Samantha Feriyana; Zulhendri Kamus
PILLAR OF PHYSICS Vol 12, No 1 (2019)
Publisher : Department of Physics – Universitas Negeri Padang UNP

This research aims to determine the accuracy and accuracy of the measuring instrument of the angle of arrival and the intensity of sunlight in real time using an accelerometer sensor and LDR. . To achieve this goal, R & D research was conducted which consisted of: reviewing existing tools, conducting literature studies, planning tool development, internal testing of tool design, revision of tool design, limited testing of measuring instruments, revision of measuring instruments and field trials main. Data were analyzed using calculations to find out the accuracy of measurements. The results of data analysis explain two important things from making a measuring instrument system. First, the angle of view measuring instrument and the intensity of sunlight consist of an accelerometer sensor and LDR. Measurement data is displayed on the LCD. Second, the accuracy and accuracy of the measuring instrument. In the measurement results, the azimuth values obtained from the measuring instrument are compared with the data obtained from BMKG. From the results of these comparisons, the average percentage of accuracy and error in measuring instruments is 95.5% and 4.52%. In the sun light intensity, the results of data analysis showed that the accuracy and error measurement of light intensity were 92.83% and 7.17% respectively.

Deteksi sebaran gas metana (CH4) di TPA Pakusari Jember menggunakan sensor TGS 2611 (Detection of methane gas (CH4) distributionin at TPA Pakusari Jember using TGS 2611 sensor) Sri Indariyatul Masruroh; Bowo Eko Cahyono; Agung Tjahjo Nugroho
PILLAR OF PHYSICS Vol 12, No 1 (2019)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Waste is an important issue in urban environments and will continue to be faced by governments and communities. Most waste disposal sites are concentrated in the Final Disposal Site (TPA). Waste accumulation in the landfill can create methane gas which can spread to the environment. The purpose of this research is to know the application of TGS 2611 sensor as methane gas detector and use it to measure methane gas distribution at TPA Pakusari Jember. This research is conducted by detecting the distribution of methane gas in TPA Pakusari. Data retrieval is performed by placing the sensor directly above the garbage pile and then observe the voltage value that appears on the LCD screen. The obtained data of voltage values are normalized and then they are visualized into 2 dimension contoure graph by using Matlab application. The results show that methane gas in TPA Pakusari is not spread evenly but it spreads randomly. This is due to the unequal garbage composition and the height random garbage at each measurement point. The largest methane gas is located in the area of the pile of organic waste that suffers from decay and the lowest methane gas is located in areas with little piles of rubbish and dominant with the soil. Thus it can be concluded that TGS 2611 sensor can be applied to detect the spread of methane gas in TPA Pakusari Jember.

Analisis sifat magnetik nanokomposit CoFe2O4/PANi yang disintesis dengan metoda sol-gel (Analysis of the magnetic properties of the CoFe2O4 / PANi nanocomposites synthesized by the sol-gel method) Rigis Sugianti; - Ramli; - Ratnawulan
PILLAR OF PHYSICS Vol 12, No 1 (2019)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Cobalt ferrite (CoFe2O4) is a hard magnetic material known for its high coercivity and moderate magnetization, these properties together with great physical and chemical stability, making cobalt ferrite suitable for magnetic sensor applications, magnetic recorders and magnetic sensor building materials. In the field of material, one of the materials that is widely developed today is composite material. CoFe2O4 / PANi nanocomposite was successfully synthesized using the sol-gel method and the growth of CoFe2O4 / PANi nanocomposite layer using spin coating was characterized using X-ray Diffraction to see the size of the Crystal, FTIR test saw the functional group, SEM test to see film thickness. Magnetic properties were analyzed, hysteresis curve obtained remanent magnetization, saturation magnetization and coercivity field. In the experiment there were 5 variations of composition by using CoFe2O4 concentrations in PANi, namely 20%, 30%, 35%, $ 0%, 50%. Based on XRD data, the crystal size of each concentration is 50.7 nm, 20.3 nm, 33.7 nm, 201.4 nm, 194.4 nm. SEM test is 16.4 nm, 50.8 nm, 128.2 nm, 36.8 nm. VSM test obtained hysteresis curve from the curve then obtained saturation magnetization is 12.10, 6.69, 10.77, 5.78, 3.56 (memu), remanent magnetization is 2.39, 1.54, 2.08, 1.91, 1.22 (memu), the coercivity field is 253.31, 353.80, 312.29, 377.76 (Oe).

Analisis teoritik nanopartikel Zirkonium Dioksida (ZrO2) (Theoretical analysis of Zirconium Dioxide (ZrO2) nanoparticles) Ayutia Zusya Putri; - Ratnawulan
PILLAR OF PHYSICS Vol 12, No 1 (2019)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Nanopartikel memiliki sifat fisis yang jauh lebih baik daripada partikel yang berukuran besar .Zirkonium Dioksida (ZrO2) adalah logam yang mempunyai warna putih keabu abuan yang tahan pada suhu tinggi dan mempunyai struktur kristal lebih dari satu. Pada penelitian ini nanopartikel yang digunakan adalah nanopartikel Zirkonium Dioksida (ZrO2) dengan menggunakan metoda sol gel dan didapatkan hasil bahwa nilai diameter partikel yang dianalisis menggunakan Surface Area meter sebesar 32,98nm dan Zirkonium Dioksida (ZrO2) yang dianalisis dapat dikategorikan sebagai ukuran nanopartikel

Cover, Dewan Redaksi, Daftar Isi Pendahulun Jurnal
PILLAR OF PHYSICS Vol 12, No 1 (2019)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Jurnal Pillar of Physics Vol. 12 No. 1, April 2019 memuat 11 artikel penelitian di bidang fisika antara lain fisika instrumentasi dan elektronika, fisika kebumian dan fisika material.

Pengaruh komposisi CoFe2O4 terhadap sifat listrik nanokomposit CoFe2O4/pani yang disintesis dengan metoda sol-gel (CoFe2O4 composition influence on the electrical properties of the CoFe2O4 / PANI nanocomposite synthesized by the sol-gel method) Fildzah Rudyah Putri Nurzam; - Ramli; - Ratnawulan
PILLAR OF PHYSICS Vol 12, No 1 (2019)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Nanocomposite ofCoFe2O4-polyaniline (CoFe2O4/PANi) with various variationsCoFe2O4 and PANi 20%, 30%, 35%, 40%, 50% which was synthesized by sol-gel method. Samples are characterized by X-ray difractionandLCR meterwith CoFe2O4compositions 20%,30%,35%,40% and 50%. Nanocomposites of CoFe2O4/PANi in prepares using sol-gel method wih precursors Fe(NO3)3.9H2O and Co(NO3)2.6H2O with PANi.The Samples the gel shaped thin layer of nanocomposite is characterized usingX –Ray Difraction and LCR meter. The XRD characterization results obtained the crystal size values on the composition variations is 44,86 nm, 39,86 nm, 41,47 nm, 59,65 nm, 57,42 nm and LCR meter characterization have value is 12,2x10-9 F, 11,2x10-9 F, 10,8x10-9 F, 9,6x10-9 F, 7,3x10-9 F. Variations in composition of nanocomposite CoFe2O4/PANi affect the value of crystal size and electrical properties of nanocomposites CoFe2O4/PANican be applied to supercapasitor.

Page 1 of 2 | Total Record : 12

1 2

Filter by Year

2019 2019

Filter By Issues

All Issue Vol 16, No 2 (2023) Vol 16, No 1 (2023) Vol 15, No 2 (2022) Vol 15, No 1 (2022) Vol 14, No 2 (2021) Vol 14, No 1 (2021) Vol 13, No 2 (2020) Vol 13, No 1 (2020) Vol 12, No 2 (2019) Vol 12, No 1 (2019) Vol 11, No 2 (2018) Vol 11, No 1 (2018) Vol 10 (2017) Vol 9 (2017) Vol 8 (2016) Vol 7 (2016) Vol 6 (2015) Vol 5 (2015) Vol 4 (2014) Vol 3 (2014) Vol 2 (2013) Vol 1 (2013) More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
Syafriani

Contact Email
syafri@fmipa.unp.ac.id

Phone
+6281267996692

Journal Mail Official
fisikasains@fmipa.unp.ac.id

Editorial Address
Department of Physics Universitas Negeri Padang UNP Prof. Dr. Hamka Street, Air Tawar, Padang 25131

Location
Kota padang,

Sumatera barat

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Syafriani

Contact Email syafri@fmipa.unp.ac.id

Phone +6281267996692

Journal Mail Official fisikasains@fmipa.unp.ac.id

Editorial Address Department of Physics Universitas Negeri Padang UNP Prof. Dr. Hamka Street, Air Tawar, Padang 25131

Location Kota padang, Sumatera barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Syafriani

Contact Email
syafri@fmipa.unp.ac.id

Phone
+6281267996692

Journal Mail Official
fisikasains@fmipa.unp.ac.id

Editorial Address
Department of Physics Universitas Negeri Padang UNP Prof. Dr. Hamka Street, Air Tawar, Padang 25131

Location
Kota padang,

Sumatera barat

INDONESIA