Rafael Kakitani, Cassio Augusto Pinto da Silva, Bismarck Silva, Amauri Garcia, Noé Cheung and José Eduardo Spinelli
Overall, selection maps about the extent of the eutectic growth projects the solidification velocities leading to given microstructures. This is because of limitations of most of…
Abstract
Purpose
Overall, selection maps about the extent of the eutectic growth projects the solidification velocities leading to given microstructures. This is because of limitations of most of the set of results when obtained for single thermal gradients within the experimental spectrum. In these cases, associations only with the solidification velocity could give the false impression that reaching a given velocity would be enough to reproduce a result. However, that velocity must necessarily be accompanied by a specific thermal gradient during transient solidification. Therefore, the purpose of this paper is to not only project velocity but also include the gradients acting for each velocity.
Design/methodology/approach
Compilation of solidification velocity, v, thermal gradient, G, and cooling rate, Ṫ, data for Sn-Cu and Sn-Bi solder alloys of interest is presented. These data are placed in the form of coupled growth zones according to the correlated microstructures in the literature. In addition, results generated in this work for Sn-(0.5, 0.7, 2.0, 2.8)% Cu and Sn-(34, 52, 58)% Bi alloys solidified under non-stationary conditions are added.
Findings
When analyzing the cooling rate (Ṫ = G.v) and velocity separately, in or around the eutectic composition, a consensus cannot be reached on the resulting microstructure. The (v vs. G) + cooling rate diagrams allow comprehensive analyzes of the combined v and G effects on the subsequent microstructure of the Sn-Cu and Sn-Bi alloys.
Originality/value
The present paper is devoted to the establishment of (v vs. G) + cooling rate diagrams. These plots may allow comprehensive analyses of the combined v and G effects on the subsequent microstructure of the Sn-Cu and Sn-Bi alloys. This microstructure-processing mapping approach is promising to predict phase competition and resulting microstructures in soldering of Sn-Cu and Sn-Bi alloys. These two classes of alloys are of interest to the soldering industry, whereas manipulation of their microstructures is considered of utmost importance for the metallurgical quality of the product.
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Elen Riot, Emmanuelle Rigaud and Ilenia Bua
The purpose of the paper is to describe the attempt of a family champagne house to redefine its business organization as a family in a large family of families. This choice…
Abstract
Purpose
The purpose of the paper is to describe the attempt of a family champagne house to redefine its business organization as a family in a large family of families. This choice involves defining their activities as entrepreneuring in a specific time and space that all actors experience as their sensible reality. To describe the whole process, the authors call this ensemble a “chronotope,” including the same space and time as part of a common story. The authors assess this narrative strategy in reference to both past conflict in the champagne business and to the present crisis caused by the pandemic in addition to a series of social, economic and environmental changes in the environment.
Design/methodology/approach
The design of the paper corresponds to the case of a champagne family house in its environment with a longitudinal, processual approach of the family business venture before and especially after its sale and buyback by the family. The authors use Bakhtin to insist on the fictional nature of the account of most events as most protagonists adopt different perspectives. The Taittinger family, at the head of the trade house, creates a story that fits in all these perspectives and makes sense to overcome key issues in the business.
Findings
Our findings illustrate the role of the chronotope as a way to broaden the scope of inter- and intra-family relations. This concept also shows the importance of shared experiences, stories and crafted practices to sustain collective work and the meaning associated with the result of this work, in this case, champagne wine. The authors also show the different styles of chronotopes and their role in binding together actors in relation to the transformation of their activities.
Research limitations/implications
The research limitations are of two kinds. The first limitation comes from the choice to focus on the Taittinger family house, as it tends to focus the analysis on their point of view. The second limitation is due to the persistence of the pandemic situation that makes it difficult to test the chronotope idea as it is quite recent. Because of the current pandemic, it is complicated to anticipate what the future could look like and therefore, to imagine the future dimension of the chronotope. To overcome this limit, the authors suggest different scenario that leaves open different possibilities.
Practical implications
The practical implications of this paper could be to see how family business entrepreneurs may benefit from designing their strategy as a rich personal fiction in reference to a chronotope instead of referring to storytelling, communication and brand management or even competition strictly speaking. In turbulent times and to face grand challenges, long-term collaborations require stronger ties and imagination without leaving out emotions. Yet the entrepreneurs may become a victim of their own fictions if stakeholders perceive contradictions or if they were to dislike the new episodes the family invents.
Social implications
The social implications of this case study show the role of business relations built on fiction reflecting strong ties and shared processes such as entrepreneuring in the world of heritage goods where sustainability and endurance matter. This perspective insists on a shared story and it contrasts with more discontinued approaches based on disruptive innovation, opportunism and competitiveness in turbulent times. The chronotope does not ineluctably evolve in different ways, making actors’ perspective shrink, expand or exile. Family entrepreneuring may actively influence this transformation and they may also be framed by it.
Originality/value
The originality of the paper comes from the description of a family business in its environment as a chronotope. Reflecting how related actors in a business field like champagne co-construct a representation, the authors looked for a concept that would accurately reflect this vision, researchers chose the concept of “chronotope,” borrowing from narrative approaches. This approach is transdisciplinary. It is also an attempt to bring researchers at work closer to what actors in the field experiment with and find inspiration in.
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Dennis M. McInerney and Ronnel B. King
The international student population is steadily increasing. However, we know little about what happens to their academic motivation as they transit from their home culture into a…
Abstract
The international student population is steadily increasing. However, we know little about what happens to their academic motivation as they transit from their home culture into a new host culture. This gap in knowledge needs to be addressed given that motivation is a key driver of academic success. The aim of this chapter is to examine factors that can influence international students' academic motivation during and after transition. Three broad theoretical frameworks drawn from the acculturation literature – culture learning theory, stress and coping theory, and social identification theory – are proffered to help understand the impact of the transition on student motivation. It seems inevitable that student motivation will generally decline during the early phases of the transition. This may be due to the differences in sociocultural norms between the home and host culture, the variety of stressors that international students face, and the potential impact of stereotyping and discrimination. However, the extent and duration of this decline could be moderated by a variety of personal (e.g., language proficiency, personality, acculturation strategies, reasons for going abroad) and contextual (e.g., cultural distance, social support) factors. Examples of intervention programs that can buffer against motivational decline are given. Implications for theory and practice are discussed.