Investigation on the Compatibility of Fe-Ni Magnetic Alloy With High Temperature Sodium

2013 ◽  
Author(s):  
Jin-quan Zhang ◽  
Pei-de Zhou ◽  
Yong-li Xu ◽  
Chun Xie ◽  
Xiao-gang Fu ◽  
...  
Keyword(s):  
Weight Gain ◽  
High Temperature ◽  
Oxide Scale ◽  
Pitting Corrosion ◽  
Scale Formation ◽  
Average Weight ◽  
Magnetic Alloy ◽  
Intergranular Attack ◽  
Test Conditions ◽  
Average Weight Gain

This paper presents the study of the compatibility of Fe-Ni magnetic alloy in high temperature sodium. After test, some detections were performed. The weight of all samples increased slightly after test, and the average weight gain increased as the temperature risen; Some Mn compounds and Cu were observed on the interface of steel with sodium, but there no pitting corrosion and intergranular attack were observed; There was no oxide scale formation on the surface of samples. The materials showed well compatibility with sodium under test conditions.

Oxide scale formation on Al containing Ni–Cr-based high temperature alloys during application as flame tube material in recirculation oil burners

2008 ◽  
Vol 59 (5) ◽  
pp. 380-388 ◽  
Author(s):  
H. Ackermann ◽  
G. Teneva-Kosseva ◽  
H. Köhne ◽  
K. Lucka ◽  
S. Richter ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxide Scale ◽  
Scale Formation ◽  
Tube Material ◽  
Flame Tube ◽  
High Temperature Alloys

scholarly journals Research on the Influence of the Light and Sexing on Growth Performance and Slaughter Results at Young Quails from Mixed Baloteşti Population of Eggs-Meat

2017 ◽  
Vol 74 (1) ◽  
pp. 15
Author(s):  
Lucian IONITA ◽  
Elena POPESCU-MICLOSANU ◽  
George NICA ◽  
Cornel Octavian PANA
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Conversion Rate ◽  
Live Weight ◽  
Control Group ◽  
Average Weight ◽  
Feed Conversion ◽  
Feed Conversion Rate ◽  
Average Weight Gain ◽  
Experimental Group

The purposes of determining the influence of the light and sexing on growth performance and slaughter results atyoung quails from Balotesti population, was organized an experiment on 150 quails, betwen age of 28 and 70 days. The chicks were divided into two groups (control and experimental), and growth and slaughter performance were determined separately by sex. Have studied 2 lighting programs, a program of continous lighting with photoperiod duration of 16 hours (16 L + 8 N, control group) and a program with lighting with asymetric hours intervals with photoperiod duration of 16 hours (10L+2N+6L+6N, experimental group).Males and females from the experimental group were recorded average performance of growth high during the period 28 - 70 days. Live weight at age of 70 days was higher with 7.54 %, average weight gain was higher with 14.86 % and feed conversion rate was lower with 13.51 % at males from experimental group compared to males from the control group. Also, the live weight at the age of 70 days was higher with 18.09 %; average weight gain was higher with 35.12 %, while feed conversion rate was reduced with 30.08 % on females from the experimental group compared to females from the control group.The results of the slaughter at 70 days were superior in the caseof females from the both groups versus males. The average weight of the carcase was higher with 17.53 % in case of the females than that of males from the experimental group, and the carcase yield was 65.37 % at the females and 65.56 % for males. Also, the average weight of the carcase was higher with 5.08 % in case of females compared to that males from the control group, and the carcase yield was 64.20 % to females 66.70 % on males.Superior results recorded in the case of females and males from the experimental group recommended the program of lighting with asymmetric hours intervals in the growth of youth quail. Also, the higher slaughter results recorded in the case of females of the two groups recommended them in the meat production through a broiler of quail that combine advantages in the production of both males and females. 

Enrichment strategy of object combination on the behaviour of growing pigs

2020 ◽  
Vol 46 (4) ◽  
pp. 9-15
Author(s):  
A. A. Famakinwa ◽  
O. A. Adebiyi ◽  
T. O. Bankole ◽  
P. O. Idahosa
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Repeated Measures ◽  
Environmental Enrichment ◽  
Growing Pigs ◽  
Performance Data ◽  
Average Weight ◽  
Feed Conversion ◽  
Large White ◽  
Average Weight Gain

This study was carried out to determine the effect of object combination as environmental enrichment on behaviour of growing pigs. Thirty-six (36) crossbreed (Large White X Landrace) growing pigs with average weight of 34-36Kg were allotted randomly into four treatments, replicated three times in a completely randomized design. The four treatments were; Control (without enrichment), PRope (2 pieces of polyester rope), treatment SWood (2 pieces of soft wood) and treatment PRope+SWood (1 piece of soft wood and 1 piece of polyester rope). Behavioural observations were monitored by CCTV and recordings were made for 6 hours/day and 3days/week. At the end of the experiment, data collected includes average feed intake and average weight gain while feed conversion ratio was calculated. Likewise, behavioural observations; enrichment use, general activities, pen manipulation and pen-mate manipulation were observed. Behavioural data were analyzed using repeated measures analysis of variance (ANOVA) while performance data were analysed using one-way ANOVA. Performance data were significantly influenced (P<0.05) by enrichments for all the parameters measured. PRope+SWood had the highest value for the final weight (50.63kg), average weight gain (15.95kg) and average feed intake (56.61kg) while PRope had the highest FCR 4.18). Penmate manipulation (10.48%), pen manipulation (19.02%) and general activities (14.62%) were lower and significantly better for PRope+SWood compared to PRope and SWood and the highest interaction with enrichment objects was observed in the PRope+SWood (55.88%). It can be concluded that the use of combination of enrichment objects enhanced the performance and behaviour of pigs.

The effectiveness of prophylactic sterilisation of beehive materials by gamma radiation

1988 ◽  
Vol 28 (6) ◽  
pp. 809 ◽  
Author(s):  
BP Oldroyd ◽  
C Reinganum
Keyword(s):  
Weight Gain ◽  
Apis Mellifera ◽  
Gamma Radiation ◽  
Gamma Irradiation ◽  
Average Weight ◽  
Nosema Apis ◽  
Average Gain ◽  
The Cost ◽  
Average Weight Gain

Honeybee (Apis mellifera) colonies hived in beehive materials that had been sterilised by gamma irradiation had an average weight gain of 29.3 kg while those housed in untreated hives had an average gain of 27.1 kg.Bees sampled from both the treated and untreated colonies were examined for the presence of Nosema apis and virus, causitive organisms of stress related diseases, at the end of the season. No significant differences were found. The slight increase in weight (2.2 kg) of the sterilised colonies was not sufficient to justify the cost of prophylactic sterilisation of beehive equipment.

Performance of Fe-33Ni-18Cr Alloy at High Temperature Oxidation

2020 ◽  
Vol 1010 ◽  
pp. 65-70
Author(s):  
Zahraa Zulnuraini ◽  
Noraziana Parimin
Keyword(s):  
Weight Gain ◽  
High Temperature ◽  
Oxide Scale ◽  
High Temperature Oxidation ◽  
Thick Layer ◽  
X Ray Diffraction ◽  
Temperature Oxidation ◽  
X Ray ◽  
Oxide Particles ◽  
Lower Temperature

This paper investigates the performance of Fe-33Ni-18Cr alloy at high temperature oxidation. The samples were isothermally oxidized at three different oxidation temperatures, namely, 600 °C, 800 °C and 1000 °C for 150 hours. This alloy was ground by using several grits of SiC paper as well as weighed by using analytical balance and measured by using Vernier caliper before oxidation test. The characterization was carried out using scanning electron microscope (SEM) equipped with energy dispersive x-ray (EDX) and x-ray diffraction (XRD). The results show that, the higher oxidation temperatures, the weight gain of the samples were increase. Sample of 1000 °C indicate more weight gain compared to samples oxidized at 600 °C and 800 °C. The kinetic of oxidation of all samples followed the parabolic rate law. The surface morphology of oxide scale at lower temperature is thin and form a continuous layer, while at high temperature, the oxide scale develops thick layer with angular oxide particles.

Investigation of Oxide-Nucleation on Ferritic FeCr Interconnect Alloys for Solid Oxide Fuel Cells Exposed to Anode and Cathode Gases at 850°C

2008 ◽  
Vol 595-598 ◽  
pp. 779-787
Author(s):  
Georg Kunschert ◽  
Hans Peter Martinz ◽  
Michael Schütze
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Thermal Cycling ◽  
Oxide Scale ◽  
Cross Sections ◽  
Scale Formation ◽  
Solid Oxide ◽  
High Temperature Strength ◽  
Strengthening Effect ◽  
Oxide Fuel

In recent years solid-oxide fuel cell (SOFC) interconnect components have proven to be a key-component accountable for the functionality of high temperature fuel cells. Amongst adequate thermal expansion and high temperature strength, highest oxidation resistance in anode and cathode gases under thermal cycling conditions is required in order to reach long term durability, particularly when using thin film light-weight components with particular focus on automotive applications. In order to match the challenging parameter profile Plansee developed the mechanically alloyed ITM, a ferritic P/M Fe26Cr alloy strengthened with additions of Y2O3 dispersoids, since it has been observed that apart from their HT strengthening effect, which is of specific interest for thin sheets components, finest ODS particles reduce the growth and enhance the adhesion of the forming oxide layers. The latter effect is of particular interest in applications where alloys are exposed to HT cyclic conditions. In this work the nucleation phase of the oxide scale formation on P/M ODS Fe26Cr ITM is compared to that on a reference ingot steel Fe22Cr in typical anode gases containing significant amounts of H2, CO and approximately 3% H2O as well as in laboratory air at 850°C. Thermal cycling oxidation tests following the COTEST standard up to 168h are carried out in both environments. Moreover cyclic oxidation tests are performed in dry anode gas. Detailed studies of oxide scale formation and evolution by means of electron microscopy of cross sections as well as oxide surfaces are undertaken.

A test of a free-access two-level pen for fattening pigs

1986 ◽  
Vol 42 (2) ◽  
pp. 269-274 ◽  
Author(s):  
D. Fraser ◽  
P. A. Phillips ◽  
B. K. Thompson
Keyword(s):  
Weight Gain ◽  
Average Weight ◽  
Free Access ◽  
Control Groups ◽  
Tiered System ◽  
Upper Level ◽  
Effective Use ◽  
Average Weight Gain ◽  
Fattening Pigs ◽  
Better Than

ABSTRACTTwo prototype two-tiered pens were constructed for fattening pigs. The pens consisted of a solid or porous upper floor located 0-8 m above a slatted lower floor, with a short ramp joining the two levels. Food was available only on the upper level and water only on the lower. Eleven groups, each of 15 to 18 pigs were housed in the two-tiered pens for 8 weeks, starting at 10 weeks of age, while matched control groups were housed in a conventional pen offering the same amount of total floor space. During the 1st week, some pigs were slow to adapt to the two-tiered system and average weight gain was lower than in the control pen. Over the 8 weeks, however, weight gain and food conversion ratios were very similar in the two pen types. The animals made effective use of the two levels, and kept the upper level free from dung. Physical condition of pigs in the two-tiered pen was as good as, or better than, that of the controls. The two-tiered design offers several potential advantages in terms of animal production and behavioural problems.

Isothermal Oxidation Behavior of Ni Base Superalloy DM02 for High Temperature Dies

2007 ◽  
Vol 546-549 ◽  
pp. 1253-1256
Author(s):  
Qing Li ◽  
Jin Xia Song ◽  
Cheng Bo Xiao ◽  
Shi Yu Qu ◽  
Ding Gang Wang ◽  
...  
Keyword(s):  
Weight Gain ◽  
High Temperature ◽  
Oxide Scale ◽  
Oxidation Resistance ◽  
Growth Mechanism ◽  
Oxidation Kinetics ◽  
Oxidation Behavior ◽  
Isothermal Oxidation ◽  
Good Oxidation Resistance ◽  
Base Superalloy

The isothermal oxidation behavior of a new developed Ni base superalloy named DM02 for high temperature dies was studied in this paper. The dynamic curve was achieved by monitoring weight gain of the alloy as a function of time. The results showed that the alloy had fairly good oxidation resistance at 1050°C and 1100°C. The oxidation kinetics at both 1050°C and 1100°C followed parabolic rules in segment. It has been found that the oxidation of the alloy was controlled by multi-oxides of (Ni, Co)O, (Ni, Co)Al2O4, and NiWO4, growth mechanism in the primary stage, and by Al2O3, NiAl2O4 growth mechanism in the following stage. After oxidation at 1050°C for 100h, the oxide scale of the alloy was mainly composed of two areas. Some were thin uniform (Ni， Co)Al2O4(outer)/Al2O3 (inner) composites scale and others were multi-layer oxide scale of ( Ni,Co)O / multi-oxides (mainly NiWO4、NiO and NiAl2O4.) /Al2O3.

scholarly journals Fermented sorghum porridge fortified with moringa leaf powder and baobab fruit pulp cured children from moderate acute malnutrition in Benin

2020 ◽  
Vol 20 (06) ◽  
pp. 16622-16637
Author(s):  
Nago E ◽  
◽  
JO Agossadou ◽  
FJ Chadare ◽  
S Houndji ◽  
...  
Keyword(s):  
Weight Gain ◽  
Treatment Group ◽  
Acute Malnutrition ◽  
Control Group ◽  
Average Weight ◽  
Fruit Pulp ◽  
Fortified Food ◽  
Leaf Powder ◽  
Moderate Acute Malnutrition ◽  
Average Weight Gain

Inappropriate feeding, too early introduction of complementary foods and restriction in food selection are a major cause of malnutrition among young children in developing countries. Food-to-food fortification is a good strategy to enhance the nutritional quality of children’s diet. This strategy is more and more promoted because it allows delivery of micronutrients to a large population in a cost-effective manner.The present study aimed at testing the effect of the consumption of sorghum porridge fortified with moringa leaf powder and baobab fruit pulp on the nutritional status of children aged 6 to 59 months in Northern Benin. A two-week intervention was implemented in Tanguiéta (Benin) among children affected by moderate acute malnutrition, using 400g of fermented sorghum porridge fortified with15g of a designed mix of moringa leaf powder and baobab fruit pulp. Sixty-three children aged 6–59 months who had malnutrition assessed by anthropometry were randomly selected and assigned to a treatment or a control group. Children in the treatment group consumed the fortified formula daily for two weeks in a nutritional rehabilitation hearth whereas those in the control group had their habitual diet. Their nutritional status was evaluated using anthropometry. Recovery rate and average weight gain of children were computed.Results show that daily consumption of the fortified food for two weeks did not significantly (P> 0.05) increase children’s weight in treatment vs. control. However, average weight gain was 9.85g/kg/day in the treatment group and total recovery rate at risk of malnutrition and moderate acute malnutrition was 62.50% among children who fully complied with the intervention. Fermented sorghum porridge fortified with moringa leaf powder and baobab fruit pulp may be promoted to scale in more regions of Benin as a local affordable and effective therapeutic food against child acute malnutrition. Further investigation of its potential effect while accounting for parasitic infection is needed, to eliminate all risks of intestinal micro nutrient malabsorption or malaria and enhance the effectiveness of the fortified food on children’s weight as well as their iron status.

scholarly journals Substitution of Anchovy Waste Flour for Fish Meal as Conventional Feed on Quail Performance (Coturnix-coturnix japonica)

2018 ◽  
Vol 1 (2) ◽  
pp. 105-111
Author(s):  
Andhika Putra ◽  
Ismail Dahlan ◽  
Andika Pratama
Keyword(s):  
Weight Gain ◽  
Fish Meal ◽  
Coturnix Japonica ◽  
Feed Consumption ◽  
Average Weight ◽  
Coturnix Coturnix Japonica ◽  
Feed Conversion ◽  
Fish Waste ◽  
Coturnix Coturnix ◽  
Average Weight Gain

Quail (Coturnix coturnix japonica) is one of the leading poultry that has a pretty good role and prospect as an egg producer and as a meat producer. The most important factor in the maintenance of quail is feed, because 80% of the costs incurred by farmers for the purchase of feed. Attempts to rotate waste is to utilize anchovy Waste enough to be used as a substitution of fish meal in the manufacture of artificial feed quail. Anchovy waste in artificial feed is expected to reduce the use of fish meal in quail feed. From the results of proximate test that has been done the protein content of starch produced 44.43%.The purpose of this research is to know the content of the fish waste flour as a feed conventional to the growth. The method used in this research is Randomized Complete Design (RAL) with 5 treatments and 4 replications. Parameters used were feed consumption, average weight gain and feed conversion. The results showed that the use of anchovy waste flour as conventional feed was very helpful in the consumption of rations, weight gain and feed conversion. The conclusion of this study is used of anchovy waste can replace fish flour as a protein source in laying quail rations.

Sign in / Sign up

Export Citation Format

Share Document